repo stringclasses 1k
values | file_url stringlengths 96 373 | file_path stringlengths 11 294 | content stringlengths 0 32.8k | language stringclasses 1
value | license stringclasses 6
values | commit_sha stringclasses 1k
values | retrieved_at stringdate 2026-01-04 14:45:56 2026-01-04 18:30:23 | truncated bool 2
classes |
|---|---|---|---|---|---|---|---|---|
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/tieredcompilation/Article.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/tieredcompilation/Article.java | package com.baeldung.tieredcompilation;
public class Article {
private String name;
private String author;
public Article(String name, String author) {
this.name = name;
this.author = author;
}
public String getName() {
return name;
}
public String getAuthor() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/tieredcompilation/JsonFormatter.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/tieredcompilation/JsonFormatter.java | package com.baeldung.tieredcompilation;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.json.JsonMapper;
public class JsonFormatter implements Formatter {
private static final JsonMapper mapper = new JsonMapper();
@Override
public <T> String format(T obje... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/tieredcompilation/Formatter.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/tieredcompilation/Formatter.java | package com.baeldung.tieredcompilation;
public interface Formatter {
<T> String format(T object) throws Exception;
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/package-info.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/package-info.java | /**
* This module is about impact of the final keyword on performance
* <p>
* This module explores if there are any performance benefits from
* using the final keyword in our code. This module examines the performance
* implications of using final on a variable, method, and class level.
* </p>
*
* @since 1.0
* @a... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/BenchmarkRunner.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/BenchmarkRunner.java | package com.baeldung.finalkeyword;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import java.util.concurrent.TimeUnit;
public class BenchmarkRunner {
public static void m... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/ClassVariableFinal.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/ClassVariableFinal.java | package com.baeldung.finalkeyword;
import java.io.Console;
public class ClassVariableFinal {
static final boolean doX = false;
static final boolean doY = true;
public static void main(String[] args) {
Console console = System.console();
if (doX) {
console.writer().println("x"... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/ClassVariableNonFinal.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/ClassVariableNonFinal.java | package com.baeldung.finalkeyword;
import java.io.Console;
public class ClassVariableNonFinal {
static boolean doX = false;
static boolean doY = true;
public static void main(String[] args) {
Console console = System.console();
if (doX) {
console.writer().println("x");
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeePOJO.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeePOJO.java | package com.baeldung.employee;
import java.time.LocalDate;
import java.util.Objects;
public class EmployeePOJO {
private String firstName;
private String lastName;
private LocalDate startDate;
public EmployeePOJO(String firstName, String lastName, LocalDate startDate) {
this.firstName = firs... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeBean.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeBean.java | package com.baeldung.employee;
import java.io.Serializable;
import java.time.LocalDate;
public class EmployeeBean implements Serializable {
private static final long serialVersionUID = -3760445487636086034L;
private String firstName;
private String lastName;
private LocalDate startDate;
public ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeVO.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeVO.java | package com.baeldung.employee;
import java.time.LocalDate;
import java.util.Objects;
public class EmployeeVO {
private String firstName;
private String lastName;
private LocalDate startDate;
public EmployeeVO(String firstName, String lastName, LocalDate startDate) {
this.firstName = firstName... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeDTO.java | core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeDTO.java | package com.baeldung.employee;
import java.time.LocalDate;
public class EmployeeDTO {
private String firstName;
private String lastName;
private LocalDate startDate;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstNam... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/datetime/modify/DateIncrementerUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/datetime/modify/DateIncrementerUnitTest.java | package com.baeldung.datetime.modify;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class DateIncrementerUnitTest {
private final static String DATE_TO_INCREMENT = "2018-07-03";
private final static String EXPECTED_DATE = "2018-07-04";
@Test
public void givenDate_whenUsi... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/compareyesterday/CompareYesterdayUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/compareyesterday/CompareYesterdayUnitTest.java | package com.baeldung.compareyesterday;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import ja... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/calculateweekdays/CalculateWeekdaysUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/calculateweekdays/CalculateWeekdaysUnitTest.java | package com.baeldung.calculateweekdays;
import static junit.framework.TestCase.assertEquals;
import java.time.LocalDate;
import org.junit.jupiter.api.Test;
public class CalculateWeekdaysUnitTest {
// Start Saturday end following Sunday (answer is 0)
LocalDate startTomorrow = LocalDate.of(2023, 12, 2);
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/sundaystartyears/FindSundayStartYearsTimeApiUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/sundaystartyears/FindSundayStartYearsTimeApiUnitTest.java | package com.baeldung.sundaystartyears;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class FindSundayStartYearsTimeApiUnitTest {
@Test
public void givenYearRange_whenCheckingStartDayTimeApi_thenReturnYearsStartingOnSunday() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/sundaystartyears/FindSundayStartYearsSpliteratorUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/sundaystartyears/FindSundayStartYearsSpliteratorUnitTest.java | package com.baeldung.sundaystartyears;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class FindSundayStartYearsSpliteratorUnitTest {
@Test
public void givenYearRange_whenCheckingStartDaySpliterator_thenReturnYearsStartingOnSunday... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/sundaystartyears/FindSundayStartYearsLegacyUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/sundaystartyears/FindSundayStartYearsLegacyUnitTest.java | package com.baeldung.sundaystartyears;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class FindSundayStartYearsLegacyUnitTest {
@Test
public void givenYearRange_whenCheckingStartDayLegacy_thenReturnYearsStartingOnSunday() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/date/AgeCalculatorUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/date/AgeCalculatorUnitTest.java | package com.baeldung.date;
import static org.junit.Assert.assertEquals;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.Date;
import org.junit.jupiter.api.Test;
public class AgeCalculatorUnitTest {
AgeCalculator ageCalculator = new AgeCalculator()... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/monthnamestonumbers/MonthNamesToNumbersUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/monthnamestonumbers/MonthNamesToNumbersUnitTest.java | package com.baeldung.monthnamestonumbers;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Month;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoField;
import java.util.Calendar;
import java.ut... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/java9/time/TimeApiUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/java9/time/TimeApiUnitTest.java | package com.baeldung.java9.time;
import static org.assertj.core.api.Assertions.assertThat;
import java.time.LocalDate;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import org.junit.Test;
public class TimeApiUnitTest {
@Test
public void givenGetDatesBetweenWithUsingJava7_WhenStar... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/longtodate/LongToDateUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/longtodate/LongToDateUnitTest.java | package com.baeldung.longtodate;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
import org.joda.time.DateTimeZone;
import org.joda... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/gregorian/calendar/GregorianCalendarTester.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/gregorian/calendar/GregorianCalendarTester.java | package com.baeldung.gregorian.calendar;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/datetounixtimestamp/DateToUnixTimeStampUnitTest.java | core-java-modules/core-java-date-operations-4/src/test/java/com/baeldung/datetounixtimestamp/DateToUnixTimeStampUnitTest.java | package com.baeldung.datetounixtimestamp;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.util.Calendar;
import java.util.Date;
import jav... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/datetime/modify/DateIncrementer.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/datetime/modify/DateIncrementer.java | package com.baeldung.datetime.modify;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.Logger;
import org.apache.commons.lang3.time.DateUtils;
import org.joda.time.DateTime;
public class DateIncr... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/calculateweekdays/CalculateWeekdays.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/calculateweekdays/CalculateWeekdays.java | package com.baeldung.calculateweekdays;
import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAdjusters;
import java.util.Arrays;
public class CalculateWeekdays {
public long getWorkingDaysWithStream(LocalDate start, LocalDate end){
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/sundaystartyears/FindSundayStartYearsLegacy.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/sundaystartyears/FindSundayStartYearsLegacy.java | package com.baeldung.sundaystartyears;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.List;
public class FindSundayStartYearsLegacy {
public static List<Integer> getYearsStartingOnSunday(int startYear, int endYear) {
List<Integer> years = new A... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/sundaystartyears/FindSundayStartYearsSpliterator.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/sundaystartyears/FindSundayStartYearsSpliterator.java | package com.baeldung.sundaystartyears;
import java.time.DayOfWeek;
import java.time.temporal.ChronoUnit;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;
import java.util.Spliterator;
import java.util.Spliterators;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
pu... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/sundaystartyears/FindSundayStartYearsTimeApi.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/sundaystartyears/FindSundayStartYearsTimeApi.java | package com.baeldung.sundaystartyears;
import java.time.DayOfWeek;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;
public class FindSundayStartYearsTimeApi {
public static List<Integer> getYearsStartingOnSunday(int startYear, int endYear) {
List<Integer> years = new ArrayLi... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/date/AgeCalculator.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/date/AgeCalculator.java | package com.baeldung.date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.Period;
import java.util.Date;
import org.joda.time.Years;
public class AgeCalculator {
public int calculateAge(LocalDate birthDate, LocalDate currentDate) {
// validat... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/java9/time/TimeApi.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/java9/time/TimeApi.java | package com.baeldung.java9.time;
import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
public clas... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/gregorian/calendar/GregorianCalendarExample.java | core-java-modules/core-java-date-operations-4/src/main/java/com/baeldung/gregorian/calendar/GregorianCalendarExample.java | package com.baeldung.gregorian.calendar;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-scanner-2/src/test/java/com/baeldung/closingscanner/ScannerCloseUnitTest.java | core-java-modules/core-java-scanner-2/src/test/java/com/baeldung/closingscanner/ScannerCloseUnitTest.java | package com.baeldung.closingscanner;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import java.io.ByteArrayInputStream;
import java.util.Scanner;
public class ScannerCloseUnitTest {
@Test
void givenUserName_whenGetGreetingMessage_thenReturnsWelcomeMessage() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-scanner-2/src/test/java/com/baeldung/closingscanner/ScannerTryWithResourcesUnitTest.java | core-java-modules/core-java-scanner-2/src/test/java/com/baeldung/closingscanner/ScannerTryWithResourcesUnitTest.java | package com.baeldung.closingscanner;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import java.io.ByteArrayInputStream;
import java.util.Scanner;
class ScannerTryWithResourcesUnitTest {
@Test
void givenUserName_whenGetGreetingMessage_thenReturnsWelcomeMessage... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-scanner-2/src/main/java/com/baeldung/closingscanner/ScannerClose.java | core-java-modules/core-java-scanner-2/src/main/java/com/baeldung/closingscanner/ScannerClose.java | package com.baeldung.closingscanner;
import java.util.Scanner;
public class ScannerClose {
public String getGreetingMessage(Scanner scanner) {
System.out.print("Enter your name: ");
String name = scanner.nextLine();
return "Hi, " + name + " Welcome to Baeldung";
}
public static vo... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-scanner-2/src/main/java/com/baeldung/closingscanner/ScannerTryWithResources.java | core-java-modules/core-java-scanner-2/src/main/java/com/baeldung/closingscanner/ScannerTryWithResources.java | package com.baeldung.closingscanner;
import java.util.Scanner;
public class ScannerTryWithResources {
public String getGreetingMessage(Scanner scanner) {
System.out.print("Enter your name: ");
String name = scanner.nextLine();
return "Hi, " + name + " Welcome to Baeldung";
}
publ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/removebrackets/RemoveBracketsFromStringUnitTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/removebrackets/RemoveBracketsFromStringUnitTest.java | package com.baeldung.removebrackets;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.apache.commons.lang3.StringUtils;
import org.junit.jupiter.api.Test;
public class RemoveBracketsFromStringUnitTest {
private static final String INPUT = "This (is) <a> [nice] {string}!";
private stat... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/splitbylastoccurrence/SplitByTheLastOccurrenceOfACharUnitTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/splitbylastoccurrence/SplitByTheLastOccurrenceOfACharUnitTest.java | package com.baeldung.splitbylastoccurrence;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import org.junit.jupiter.api.Test;
public class SplitByTheLastOccurrenceOfACharUnitTest {
private static final String INPUT1 = "a b c@e f g@x y z";
private static final String[] EXPECTED1 = new Stri... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/stringafterthelastpattern/FindSubstringAfterTheLastPatternUnitTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/stringafterthelastpattern/FindSubstringAfterTheLastPatternUnitTest.java | package com.baeldung.stringafterthelastpattern;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.apache.commons.lang3.StringUtils;
import org.junit.jupiter.api.Test;
public class FindSubstringAfterTheLastPatternUnitTest {
p... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/stripmethods/StripMethodsUnitTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/stripmethods/StripMethodsUnitTest.java | package com.baeldung.stripmethods;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.jupiter.api.Test;
public class StripMethodsUnitTest {
private static String s = " Baeldung ";
@Test
void givenString_whenUsingStripLeadingMethod_thenRemoveLeadingWhitespace() {
assertTh... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingFormatTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingFormatTest.java | package com.baeldung.insertnewlineinstringbuilder;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
public class NewlineUsingFormatTest {
@Test
public void whenUsingLineSeparator_thenCorrectNewlineIsApplied() {
String result = NewlineUsingFormat.getFormattedString(... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/StringBuilderHelperTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/StringBuilderHelperTest.java | package com.baeldung.insertnewlineinstringbuilder;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
class StringBuilderHelperTest {
@Test
public void whenAppendingString_thenCorrectStringIsBuilt() {
StringBuilderHelper gsBuilder = new StringBuilderHelper();
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingNTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingNTest.java | package com.baeldung.insertnewlineinstringbuilder;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class NewlineUsingNTest {
@Test
public void whenUsingN_thenCorrectNewlineIsApplied() {
String result = NewlineUsingN.getFormattedString();
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingPropertyTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingPropertyTest.java | package com.baeldung.insertnewlineinstringbuilder;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class NewlineUsingPropertyTest {
@Test
public void whenUsingProperty_thenCorrectNewlineIsApplied() {
String result = NewlineUsingProperty.getForma... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingLineSeparatorTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingLineSeparatorTest.java | package com.baeldung.insertnewlineinstringbuilder;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class NewlineUsingLineSeparatorTest {
@Test
public void whenUsingLineSeparator_thenCorrectNewlineIsAppl... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/removeallcharsbeforechar/RemoveAllCharsBeforeSpecificOneUnitTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/removeallcharsbeforechar/RemoveAllCharsBeforeSpecificOneUnitTest.java | package com.baeldung.removeallcharsbeforechar;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class RemoveAllCharsBeforeSpecificOneUnitTest {
String inputString = "Hello World!";
char targetCharacter = 'W';
@Test
public void givenString_whenUsingSubstring_thenCharactersRe... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertemojiinstring/InsertEmojiInStringUnitTest.java | core-java-modules/core-java-string-operations-10/src/test/java/com/baeldung/insertemojiinstring/InsertEmojiInStringUnitTest.java | package com.baeldung.insertemojiinstring;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class InsertEmojiInStringUnitTest {
String expected = "Java Tutorials and Guides at Baeldung. 😀";
int smileyCodePoint = 0x1F600;
@Test
public void givenUn... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingN.java | core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingN.java | package com.baeldung.insertnewlineinstringbuilder;
public class NewlineUsingN {
public static String getFormattedString() {
StringBuilder sb = new StringBuilder();
sb.append("Line 1");
sb.append("\n");
sb.append("Line 2");
return sb.toString();
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingFormat.java | core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingFormat.java | package com.baeldung.insertnewlineinstringbuilder;
public class NewlineUsingFormat {
public static String getFormattedString() {
StringBuilder sb = new StringBuilder();
sb.append("First Line");
sb.append(String.format("%n"));
sb.append("Second Line");
return sb.toString();
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingLineSeparator.java | core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingLineSeparator.java | package com.baeldung.insertnewlineinstringbuilder;
public class NewlineUsingLineSeparator {
public static String getFormattedString() {
StringBuilder sb = new StringBuilder();
sb.append("First Line");
sb.append(System.lineSeparator());
sb.append("Second Line");
return sb.toS... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/StringBuilderHelper.java | core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/StringBuilderHelper.java | package com.baeldung.insertnewlineinstringbuilder;
public class StringBuilderHelper {
private StringBuilder sb;
public StringBuilderHelper() {
sb = new StringBuilder();
}
public StringBuilderHelper append(Object obj) {
sb.append(obj != null ? obj.toString() : "");
return this... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingProperty.java | core-java-modules/core-java-string-operations-10/src/main/java/com/baeldung/insertnewlineinstringbuilder/NewlineUsingProperty.java | package com.baeldung.insertnewlineinstringbuilder;
public class NewlineUsingProperty {
public static String getFormattedString() {
StringBuilder sb = new StringBuilder();
sb.append("First Line");
sb.append(System.getProperty("line.separator"));
sb.append("Second Line");
retu... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/ElapsedTimeManualTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/ElapsedTimeManualTest.java | package com.baeldung.time;
import static org.junit.Assert.assertEquals;
import java.time.Duration;
import java.time.Instant;
import java.util.concurrent.TimeUnit;
import org.apache.commons.lang3.time.StopWatch;
import org.junit.Test;
public class ElapsedTimeManualTest {
@Test
public void givenRunningTask_w... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/LocalDateTimeUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/LocalDateTimeUnitTest.java | package com.baeldung.time;
import org.junit.Test;
import java.time.Clock;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import static org.assertj.core.api.Assertions.assertThat;
public class LocalDateTimeUnitTest {
@Test
public void givenFixedClock_whenNow_thenGetFixedL... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/InstantUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/InstantUnitTest.java | package com.baeldung.time;
import org.junit.Test;
import org.mockito.MockedStatic;
import java.time.Clock;
import java.time.Instant;
import java.time.ZoneId;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mockStatic;
public class InstantUnitTest {
@Test
public v... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/InstantWithJMockUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/InstantWithJMockUnitTest.java | package com.baeldung.time;
import mockit.Expectations;
import mockit.Mock;
import mockit.MockUp;
import org.junit.jupiter.api.Test;
import java.time.Clock;
import java.time.Instant;
import java.time.ZoneId;
import static org.assertj.core.api.Assertions.assertThat;
public class InstantWithJMockUnitTest {
@Test
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/LocalDateTimeWithJMockUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/time/LocalDateTimeWithJMockUnitTest.java | package com.baeldung.time;
import mockit.Expectations;
import mockit.Mock;
import mockit.MockUp;
import org.junit.jupiter.api.Test;
import java.time.Clock;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import static org.assertj.core.api.Assertions.assertThat;
public class LocalD... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/timer/DatabaseMigrationTaskUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/timer/DatabaseMigrationTaskUnitTest.java | package com.baeldung.timer;
import org.junit.jupiter.api.Test;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.*;
import static org.assertj.core.api.Assertions.assertThat;
class DatabaseMigrationTaskUnitTest {
@Test
void givenDatabaseMigrationTask_whenTimerScheduledForNowPlusTwoSec... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/timer/NewsletterTaskUnitManualTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/timer/NewsletterTaskUnitManualTest.java | package com.baeldung.timer;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import java.util.Timer;
class NewsletterTaskUnitManualTest {
private final Timer timer = new Timer();
@AfterEach
void afterEach() {
timer.cancel();
}
@Test
void givenNewsletterTask... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/timer/JavaTimerLongRunningUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/timer/JavaTimerLongRunningUnitTest.java | package com.baeldung.timer;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
pub... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/clock/ClockUnitTest.java | core-java-modules/core-java-time-measurements/src/test/java/com/baeldung/clock/ClockUnitTest.java | package com.baeldung.clock;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.time.Clock;
import java.time.Duration;
import java.time.ZoneId;
import java.time.ZoneOffset;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Cl... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/main/java/com/baeldung/timer/NewsletterTask.java | core-java-modules/core-java-time-measurements/src/main/java/com/baeldung/timer/NewsletterTask.java | package com.baeldung.timer;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Random;
import java.util.TimerTask;
import java.util.concurrent.TimeUnit;
public class NewsletterTask extends TimerTask {
@Override
public void run() {
System.out.println("Em... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-time-measurements/src/main/java/com/baeldung/timer/DatabaseMigrationTask.java | core-java-modules/core-java-time-measurements/src/main/java/com/baeldung/timer/DatabaseMigrationTask.java | package com.baeldung.timer;
import java.util.List;
import java.util.TimerTask;
public class DatabaseMigrationTask extends TimerTask {
private List<String> oldDatabase;
private List<String> newDatabase;
public DatabaseMigrationTask(List<String> oldDatabase, List<String> newDatabase) {
this.oldData... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/string/DoubleToStringUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/string/DoubleToStringUnitTest.java | package com.baeldung.string;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class DoubleToStringUnitTest {
private static final double DOUBLE_VALUE = 3.56;
private static final String TRUNCATED_DOUBLE = "3";
private static final String ROUNDED_UP_DOUBLE = "4"... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/nth/root/calculator/NthRootCalculatorUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/nth/root/calculator/NthRootCalculatorUnitTest.java | package com.baeldung.nth.root.calculator;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class NthRootCalculatorUnitTest {
private NthRootCalculator nthRootCalculator = new NthRootCalculator();
@Test
public void whenBaseIs125AndNIs3_thenNthIs5() {
double nth = nthRoo... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/positivenegative/PositiveOrNegativeUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/positivenegative/PositiveOrNegativeUnitTest.java | package com.baeldung.positivenegative;
import static com.baeldung.positivenegative.PositiveOrNegative.Result.NEGATIVE;
import static com.baeldung.positivenegative.PositiveOrNegative.Result.POSITIVE;
import static com.baeldung.positivenegative.PositiveOrNegative.Result.ZERO;
import static org.junit.jupiter.api.Assertio... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/bigdecimalzero/BigDecimalZeroChkUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/bigdecimalzero/BigDecimalZeroChkUnitTest.java | package com.baeldung.bigdecimalzero;
import static org.assertj.core.api.Assertions.assertThat;
import java.math.BigDecimal;
import org.junit.jupiter.api.Test;
class BigDecimalZeroChkUnitTest {
private static final BigDecimal BD1 = new BigDecimal("0");
private static final BigDecimal BD2 = new BigDecimal("0.... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/removingdecimals/RemovingDecimalsUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/removingdecimals/RemovingDecimalsUnitTest.java | package com.baeldung.removingdecimals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import org.junit.Test;
/**
* Tests that demonstrate some dif... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/removingdecimals/RemovingDecimalsManualTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/removingdecimals/RemovingDecimalsManualTest.java | package com.baeldung.removingdecimals;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/uniquedigitcounter/UniqueDigitCounterUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/uniquedigitcounter/UniqueDigitCounterUnitTest.java | package com.baeldung.uniquedigitcounter;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class UniqueDigitCounterUnitTest {
@Test
public void givenNumber_whenUsingBruteForce_thenCountNumbersWithUniqueDigits() {
assertEquals(91, UniqueDigitCounter.bruteForce(2));
}
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/pairsaddupnumber/DifferentPairsUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/pairsaddupnumber/DifferentPairsUnitTest.java | package com.baeldung.pairsaddupnumber;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.util.List;
import org.junit.Test;
public class DifferentPairsUnitTest {
/* All different pairs */
@Test
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/pairsaddupnumber/ExistingPairsUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/pairsaddupnumber/ExistingPairsUnitTest.java | package com.baeldung.pairsaddupnumber;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.List;
import org.junit.Test;
public class ExistingPairsUnitTest {
/* All existing pairs */
@Test
public void whenTraditionalLoop_thenReturnAllExistingPairs() {
/* Data */
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/maths/FloatingPointArithmeticUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/maths/FloatingPointArithmeticUnitTest.java | package com.baeldung.maths;
import java.math.BigDecimal;
import org.junit.Assert;
import org.junit.Test;
public class FloatingPointArithmeticUnitTest {
@Test
public void givenDecimalNumbers_whenAddedTogether_thenGetExpectedResult() {
double a = 13.22;
double b = 4.88;
double c = 21.4... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/maths/MathSinUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/maths/MathSinUnitTest.java | package com.baeldung.maths;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import org.junit.jupiter.api.Test;
public class MathSinUnitTest {
@Test
public void givenAnAngleInDegrees_whenUsingToRadians_thenResultIsInRadians() {
double angleInDegrees = 30;
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/random/JavaRandomUnitTest.java | core-java-modules/core-java-numbers-9/src/test/java/com/baeldung/random/JavaRandomUnitTest.java | package com.baeldung.random;
import java.util.Random;
import org.apache.commons.math3.random.RandomDataGenerator;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JavaRandomUnitTest {
private static final Logger LOG = LoggerFactory.getLogger(JavaRandomUnitTest.class);... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/string/DoubleToString.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/string/DoubleToString.java | package com.baeldung.string;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.NumberFormat;
public class DoubleToString {
public static String truncateByCast(double d) {
return String.valueOf((int) d);
}
public static String roundWithStringFormat(double d) {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/nth/root/calculator/NthRootCalculator.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/nth/root/calculator/NthRootCalculator.java | package com.baeldung.nth.root.calculator;
public class NthRootCalculator {
public double calculateWithRound(double base, double n) {
return Math.round(calculate(base, n));
}
public double calculate(double base, double n) {
return Math.pow(base, 1.0 / n);
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/nth/root/main/Main.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/nth/root/main/Main.java | package com.baeldung.nth.root.main;
import com.baeldung.nth.root.calculator.NthRootCalculator;
public class Main {
public static void main(String[] args) {
NthRootCalculator calculator = new NthRootCalculator();
Double base = Double.parseDouble(args[0]);
Double n = Double.parseDouble(args[... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/positivenegative/PositiveOrNegative.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/positivenegative/PositiveOrNegative.java | package com.baeldung.positivenegative;
public class PositiveOrNegative {
enum Result {
POSITIVE, NEGATIVE, ZERO
}
public static Result byOperator(Integer integer) {
if (integer > 0) {
return Result.POSITIVE;
} else if (integer < 0) {
return Result.NEGATIVE;
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/uniquedigitcounter/UniqueDigitCounter.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/uniquedigitcounter/UniqueDigitCounter.java | package com.baeldung.uniquedigitcounter;
public class UniqueDigitCounter {
static int bruteForce(int n) {
int count = 0;
int limit = (int)Math.pow(10, n);
for (int num = 0; num < limit; num++) {
if (hasUniqueDigits(num)) {
count++;
}
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/pairsaddupnumber/ExistingPairs.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/pairsaddupnumber/ExistingPairs.java | package com.baeldung.pairsaddupnumber;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.IntStream;
/**
* Find all existing pairs of numbers in an array that add up to a given sum - Complexity O(n^2) "Brute force"
*/
public class ExistingPairs {
/**
* Show all existing pairs usin... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/pairsaddupnumber/DifferentPairs.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/pairsaddupnumber/DifferentPairs.java | package com.baeldung.pairsaddupnumber;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.IntStream;
/**
* Find all different pairs of numbers in an array that add up to a given sum - Complexity O(n)
*/
public class DifferentPairs {
/**
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/pairsaddupnumber/FindPairs.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/pairsaddupnumber/FindPairs.java | package com.baeldung.pairsaddupnumber;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.IntStream;
public class FindPairs {
public void execute(int[] input, int sum) {
final StringBuilder inputArray = new StringBuilder();
inputArray.append("{");
IntStream.range(... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/maths/FloatingPointArithmetic.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/maths/FloatingPointArithmetic.java | package com.baeldung.maths;
import java.math.BigDecimal;
public class FloatingPointArithmetic {
public static void main(String[] args) {
double a = 13.22;
double b = 4.88;
double c = 21.45;
System.out.println("a = " + a);
System.out.println("b = ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/random/SecureRandomDemo.java | core-java-modules/core-java-numbers-9/src/main/java/com/baeldung/random/SecureRandomDemo.java | package com.baeldung.random;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.stream.DoubleStream;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
public interface SecureRandomDemo {
public static void generateSecureRandomValues() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/sumofnevendivisibleby3/SumOfNFirstEvenNumbersDivisibleBy3UnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/sumofnevendivisibleby3/SumOfNFirstEvenNumbersDivisibleBy3UnitTest.java | package com.baeldung.sumofnevendivisibleby3;
import org.junit.jupiter.api.Test;
import java.util.stream.IntStream;
import static org.junit.jupiter.api.Assertions.assertEquals;
class SumOfNFirstEvenNumbersDivisibleBy3UnitTest {
private static final int NUMBER = 7;
private static final int EXPECTED_SUM = 18;... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/poweroftwo/CheckPowerOfTwoUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/poweroftwo/CheckPowerOfTwoUnitTest.java | package com.baeldung.poweroftwo;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.jupiter.api.Test;
public class CheckPowerOfTwoUnitTest {
@Test
public void givenANonePowerOfTwoNum_whenUsingLogarithm_thenReturnFalse() {
assertFalse(CheckPowerOfT... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/randomseed/RandomSeedUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/randomseed/RandomSeedUnitTest.java | package com.baeldung.randomseed;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertTrue;
import java.util.Random;
import org.junit.Test;
public class RandomSeedUnitTest {
@Test
public void whenUsingSameSeeds_thenGenerateNumbers() {
Random random1 = new Random(35)... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/nexthighestnumbersamedigit/NextHighestNumberUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/nexthighestnumbersamedigit/NextHighestNumberUnitTest.java | package com.baeldung.nexthighestnumbersamedigit;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class NextHighestNumberUnitTest {
@Test
public void givenInput536479_whenUsingPermutation_thenOutputShouldBe536497() {
int input = 536479;
int result = NextHighestNumbe... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/decimaltofraction/DecimalToFractionUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/decimaltofraction/DecimalToFractionUnitTest.java | package com.baeldung.decimaltofraction;
import static com.baeldung.decimaltofraction.DecimalToFraction.convertDecimalToFractionUsingApacheCommonsMath;
import static com.baeldung.decimaltofraction.DecimalToFraction.convertDecimalToFractionUsingGCD;
import static com.baeldung.decimaltofraction.DecimalToFraction.convertD... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/onescomplement/OnesComplementUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/onescomplement/OnesComplementUnitTest.java | package com.baeldung.onescomplement;
import static org.junit.Assert.assertEquals;
import java.math.BigInteger;
import org.junit.jupiter.api.Test;
public class OnesComplementUnitTest {
@Test
void givenAPositiveNumber_whenCalculateOnesComplementUsingBitwiseNot_thenReturnOneComplementValue() {
int one... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/validatestringnumber/StringNumberValidatorUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/validatestringnumber/StringNumberValidatorUnitTest.java | package com.baeldung.validatestringnumber;
import static com.baeldung.validatestringnumber.StringNumberValidator.*;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.apache.commons.lang3.math.NumberUtils;
import org.junit.Test;
public cl... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/arbitrarylengthbinaryintegers/BigIntegerExampleUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/arbitrarylengthbinaryintegers/BigIntegerExampleUnitTest.java | package com.baeldung.arbitrarylengthbinaryintegers;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import java.math.BigInteger;
class BigIntegerExampleUnitTest {
@Test
void givenTwoBigIntegers_whenAdding_thenResultIsCorrect() {
BigInteger a = new BigInteger("11... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/arbitrarylengthbinaryintegers/BinaryLiteralsUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/arbitrarylengthbinaryintegers/BinaryLiteralsUnitTest.java | package com.baeldung.arbitrarylengthbinaryintegers;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class BinaryLiteralsUnitTest {
@Test
void givenTwoBinaryLiterals_whenAdding_thenResultIsCorrect() {
int a = 0b110100101101010;
int b = 0b1000;
int ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/arbitrarylengthbinaryintegers/BinaryStringOperationsUnitTest.java | core-java-modules/core-java-numbers-8/src/test/java/com/baeldung/arbitrarylengthbinaryintegers/BinaryStringOperationsUnitTest.java | package com.baeldung.arbitrarylengthbinaryintegers;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class BinaryStringOperationsUnitTest {
@Test
void givenTwoBinaryStrings_whenAdding_thenResultIsCorrect() {
String a = "11010010110101010101010101010101010101010101... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/area/circle/Circle.java | core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/area/circle/Circle.java | package com.baeldung.area.circle;
public class Circle {
private double radius;
public Circle(double radius) {
this.radius = radius;
}
public double getRadius() {
return radius;
}
public void setRadius(double radius) {
this.radius = radius;
}
private double c... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/area/circle/CircleArea.java | core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/area/circle/CircleArea.java | package com.baeldung.area.circle;
import java.util.InputMismatchException;
import java.util.Scanner;
public class CircleArea {
public static void main(String[] args) {
if (args.length > 0) {
try {
double radius = Double.parseDouble(args[0]);
calculateArea(radiu... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/poweroftwo/CheckPowerOfTwo.java | core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/poweroftwo/CheckPowerOfTwo.java | package com.baeldung.poweroftwo;
public class CheckPowerOfTwo {
public static boolean isPowerOfTwoUsingLogarithm(int n) {
return (Math.log(n) / Math.log(2)) % 1 == 0;
}
public static boolean isPowerOfTwoUsingBitwiseOperations(int n) {
return (n != 0) && ((n & (n - 1)) == 0);
}
pu... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/nexthighestnumbersamedigit/NextHighestNumber.java | core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/nexthighestnumbersamedigit/NextHighestNumber.java | package com.baeldung.nexthighestnumbersamedigit;
import java.util.Arrays;
import java.util.Set;
import java.util.TreeSet;
public class NextHighestNumber {
private static void findPermutations(int num, int index, StringBuilder sb, Set<Integer> hs) {
if (index == sb.length() - 1) {
hs.add(Integ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/decimaltofraction/DecimalToFraction.java | core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/decimaltofraction/DecimalToFraction.java | package com.baeldung.decimaltofraction;
import org.apache.commons.math3.fraction.Fraction;
public class DecimalToFraction {
public static String convertDecimalToFractionUsingMultiplyingWithPowerOf10(double decimal) {
String decimalStr = String.valueOf(decimal);
int decimalPlaces = decimalStr.leng... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/onescomplement/OnesComplement.java | core-java-modules/core-java-numbers-8/src/main/java/com/baeldung/onescomplement/OnesComplement.java | package com.baeldung.onescomplement;
import java.math.BigInteger;
public class OnesComplement {
public static int calculateOnesComplementUsingBitwiseNot(int num) {
int onesComplement = ~num;
return onesComplement;
}
public static int calculateOnesComplementUsingXOROperator(int num, int bi... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
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