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/patterns-modules/solid/src/main/java/com/baeldung/s/BookPrinter.java | patterns-modules/solid/src/main/java/com/baeldung/s/BookPrinter.java | package com.baeldung.s;
public class BookPrinter {
//methods for outputting text
void printTextToConsole(String text){
//our code for formatting and printing the text
}
void printTextToAnotherMedium(String text){
//code for writing to any other location..
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/s/TextPrinter.java | patterns-modules/solid/src/main/java/com/baeldung/s/TextPrinter.java | package com.baeldung.s;
import java.util.Arrays;
public class TextPrinter {
TextManipulator textManipulator;
public TextPrinter(TextManipulator textManipulator) {
this.textManipulator = textManipulator;
}
public void printText() {
System.out.println(textManipulator.getText());
}
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/s/BadBook.java | patterns-modules/solid/src/main/java/com/baeldung/s/BadBook.java | package com.baeldung.s;
public class BadBook {
private String name;
private String author;
private String text;
//constructor, getters and setters
//methods that directly relate to the book properties
public String replaceWordInText(String word, String replacementWord){
return text.replaceAll(word,... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/s/TextManipulator.java | patterns-modules/solid/src/main/java/com/baeldung/s/TextManipulator.java | package com.baeldung.s;
public class TextManipulator {
private String text;
public TextManipulator(String text) {
this.text = text;
}
public String getText() {
return text;
}
public void appendText(String newText) {
text = text.concat(newText);
}
public Strin... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/Engine.java | patterns-modules/solid/src/main/java/com/baeldung/l/Engine.java | package com.baeldung.l;
public class Engine {
public void on(){
//vroom.
}
public void powerOn(int amount){
//do something
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/MotorCar.java | patterns-modules/solid/src/main/java/com/baeldung/l/MotorCar.java | package com.baeldung.l;
public class MotorCar implements Car {
private Engine engine;
//Constructors, getters + setters
public void turnOnEngine() {
//turn on the engine!
engine.on();
}
public void accelerate() {
//move forward!
engine.powerOn(1000);
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/ElectricCar.java | patterns-modules/solid/src/main/java/com/baeldung/l/ElectricCar.java | package com.baeldung.l;
public class ElectricCar implements Car {
public void turnOnEngine() {
throw new AssertionError("I don't have an engine!");
}
public void accelerate() {
//this acceleration is crazy!
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/Car.java | patterns-modules/solid/src/main/java/com/baeldung/l/Car.java | package com.baeldung.l;
public interface Car {
void turnOnEngine();
void accelerate();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/FixedTermDepositAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/FixedTermDepositAccount.java | package com.baeldung.l.advanced;
import java.math.BigDecimal;
public class FixedTermDepositAccount extends Account {
@Override
protected void deposit(BigDecimal amount) {
// Deposit into this account
}
@Override
protected void withdraw(BigDecimal amount) {
throw new UnsupportedOpe... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Foo.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Foo.java | package com.baeldung.l.advanced;
public abstract class Foo {
// precondition: 0 < num <=5
public void doStuff(int num) {
if (num <= 0 || num > 5) {
throw new IllegalArgumentException("Input out of range 1-5");
}
// some logic here...
}
// precondition: 0 < num <=5
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/SavingsAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/SavingsAccount.java | package com.baeldung.l.advanced;
import java.math.BigDecimal;
public class SavingsAccount extends Account {
@Override
protected void deposit(BigDecimal amount) {
// Deposit into SavingsAccount
}
@Override
protected void withdraw(BigDecimal amount) {
// Withdraw from SavingsAcc... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Account.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Account.java | package com.baeldung.l.advanced;
import java.math.BigDecimal;
public abstract class Account {
protected abstract void deposit(BigDecimal amount);
/**
* Reduces the account balance by the specified amount
* provided given amount > 0 and account meets minimum available
* balance criteria.
*... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/ToyCar.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/ToyCar.java | package com.baeldung.l.advanced;
public class ToyCar extends Car {
public ToyCar(int mileage) {
super(mileage);
}
protected void turnOnEngine() {
}
protected void accelerate() {
}
protected void brake() {
}
public void reset() {
mileage = 0;
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Bar.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Bar.java | package com.baeldung.l.advanced;
public class Bar extends Foo {
@Override
// precondition: 0 < num <= 10
public void doStuff(int num) {
if (num <= 0 || num > 10) {
throw new IllegalArgumentException("Input out of range 1-10");
}
// some logic here...
}
@Overrid... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/ReadOnlyFileSystem.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/ReadOnlyFileSystem.java | package com.baeldung.l.advanced;
import java.io.File;
import java.io.IOException;
public class ReadOnlyFileSystem implements FileSystem {
public File[] listFiles(String path) {
// code to list files
return new File[0];
}
public void deleteFile(String path) throws IOException {
// ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/CurrentAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/CurrentAccount.java | package com.baeldung.l.advanced;
import java.math.BigDecimal;
public class CurrentAccount extends Account {
@Override
protected void deposit(BigDecimal amount) {
// Deposit into CurrentAccount
}
@Override
protected void withdraw(BigDecimal amount) {
// Withdraw from CurrentAccount... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/HybridCar.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/HybridCar.java | package com.baeldung.l.advanced;
public class HybridCar extends Car {
// invariant: charge >= 0;
private int charge;
public HybridCar(int mileage) {
super(mileage);
}
@Override
protected void turnOnEngine() {
// Start HybridCar
}
@Override
// postcondition: speed ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/MotorCar.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/MotorCar.java | package com.baeldung.l.advanced;
public class MotorCar extends Car {
public MotorCar(int mileage) {
super(mileage);
}
@Override
protected void turnOnEngine() {
// Start MotorCar
}
@Override
// postcondition: speed < limit
protected void accelerate() {
// Accel... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/BankingAppWithdrawalService.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/BankingAppWithdrawalService.java | package com.baeldung.l.advanced;
import java.math.BigDecimal;
public class BankingAppWithdrawalService {
private Account account;
public BankingAppWithdrawalService(Account account) {
this.account = account;
}
public void withdraw(BigDecimal amount) {
account.withdraw(amount);
}
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/ElectricCar.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/ElectricCar.java | package com.baeldung.l.advanced;
public class ElectricCar extends Car {
public ElectricCar(int mileage) {
super(mileage);
}
@Override
protected void turnOnEngine() {
throw new AssertionError("I am an Electric Car. I don't have an engine!");
}
@Override
protected void acce... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Car.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/Car.java | package com.baeldung.l.advanced;
public abstract class Car {
protected int limit;
// invariant: speed < limit;
protected int speed;
// Allowed to be set once at the time of creation.
// Value can only increment thereafter.
// Value cannot be reset.
protected int mileage;
public Car(i... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/FileSystem.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/FileSystem.java | package com.baeldung.l.advanced;
import java.io.File;
import java.io.IOException;
public interface FileSystem {
File[] listFiles(String path);
void deleteFile(String path) throws IOException;
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/FilePurgingJob.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/FilePurgingJob.java | package com.baeldung.l.advanced;
import java.io.IOException;
public class FilePurgingJob {
private FileSystem fileSystem;
public FilePurgingJob(FileSystem fileSystem) {
this.fileSystem = fileSystem;
}
public void purgeOldestFile(String path) throws IOException {
if (!(fileSystem inst... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/FixedTermDepositAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/FixedTermDepositAccount.java | package com.baeldung.l.advanced.refactored;
import java.math.BigDecimal;
public class FixedTermDepositAccount extends Account {
protected void deposit(BigDecimal amount) {
// Deposit into this account
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/WithdrawableAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/WithdrawableAccount.java | package com.baeldung.l.advanced.refactored;
import java.math.BigDecimal;
public abstract class WithdrawableAccount extends Account {
/**
* Reduces the account balance by the specified amount
* provided given amount > 0 and account meets minimum available
* balance criteria.
*
* @param amo... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/SavingsAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/SavingsAccount.java | package com.baeldung.l.advanced.refactored;
import java.math.BigDecimal;
public class SavingsAccount extends WithdrawableAccount {
protected void deposit(BigDecimal amount) {
// Deposit into SavingsAccount
}
protected void withdraw(BigDecimal amount) {
// Withdraw from SavingsAccount
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/Account.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/Account.java | package com.baeldung.l.advanced.refactored;
import java.math.BigDecimal;
public abstract class Account {
protected abstract void deposit(BigDecimal amount);
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/CurrentAccount.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/CurrentAccount.java | package com.baeldung.l.advanced.refactored;
import java.math.BigDecimal;
public class CurrentAccount extends WithdrawableAccount {
protected void deposit(BigDecimal amount) {
// Deposit into CurrentAccount
}
protected void withdraw(BigDecimal amount) {
// Withdraw from CurrentAccount
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/BankingAppWithdrawalService.java | patterns-modules/solid/src/main/java/com/baeldung/l/advanced/refactored/BankingAppWithdrawalService.java | package com.baeldung.l.advanced.refactored;
import com.baeldung.l.advanced.Account;
import java.math.BigDecimal;
public class BankingAppWithdrawalService {
private WithdrawableAccount withdrawableAccount;
public BankingAppWithdrawalService(WithdrawableAccount withdrawableAccount) {
this.withdrawable... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/d/Keyboard.java | patterns-modules/solid/src/main/java/com/baeldung/d/Keyboard.java | package com.baeldung.d;
public interface Keyboard {
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/d/Monitor.java | patterns-modules/solid/src/main/java/com/baeldung/d/Monitor.java | package com.baeldung.d;
public class Monitor {
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/d/StandardKeyboard.java | patterns-modules/solid/src/main/java/com/baeldung/d/StandardKeyboard.java | package com.baeldung.d;
public class StandardKeyboard implements Keyboard {
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/d/Windows98Machine.java | patterns-modules/solid/src/main/java/com/baeldung/d/Windows98Machine.java | package com.baeldung.d;
public class Windows98Machine {
private final StandardKeyboard keyboard;
private final Monitor monitor;
public Windows98Machine() {
monitor = new Monitor();
keyboard = new StandardKeyboard();
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/d/Windows98MachineDI.java | patterns-modules/solid/src/main/java/com/baeldung/d/Windows98MachineDI.java | package com.baeldung.d;
public class Windows98MachineDI {
private final Keyboard keyboard;
private final Monitor monitor;
public Windows98MachineDI(Keyboard keyboard, Monitor monitor) {
this.keyboard = keyboard;
this.monitor = monitor;
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/BearFeeder.java | patterns-modules/solid/src/main/java/com/baeldung/i/BearFeeder.java | package com.baeldung.i;
public interface BearFeeder {
void feedTheBear();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/CrazyPerson.java | patterns-modules/solid/src/main/java/com/baeldung/i/CrazyPerson.java | package com.baeldung.i;
public class CrazyPerson implements BearPetter {
public void petTheBear() {
//Good luck with that!
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/BearCarer.java | patterns-modules/solid/src/main/java/com/baeldung/i/BearCarer.java | package com.baeldung.i;
public class BearCarer implements BearCleaner, BearFeeder {
public void washTheBear() {
//I think we missed a spot..
}
public void feedTheBear() {
//Tuna tuesdays..
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/BearPetter.java | patterns-modules/solid/src/main/java/com/baeldung/i/BearPetter.java | package com.baeldung.i;
public interface BearPetter {
void petTheBear();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/BearCleaner.java | patterns-modules/solid/src/main/java/com/baeldung/i/BearCleaner.java | package com.baeldung.i;
public interface BearCleaner {
void washTheBear();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/BearKeeper.java | patterns-modules/solid/src/main/java/com/baeldung/i/BearKeeper.java | package com.baeldung.i;
public interface BearKeeper {
void washTheBear();
void feedTheBear();
void petTheBear();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/polluted/LoanPayment.java | patterns-modules/solid/src/main/java/com/baeldung/i/polluted/LoanPayment.java | package com.baeldung.i.polluted;
import java.util.List;
public class LoanPayment implements Payment {
@Override
public void initiatePayments() {
}
@Override
public Object status() {
return null;
}
@Override
public List<Object> getPayments() {
return null;
}
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/polluted/Payment.java | patterns-modules/solid/src/main/java/com/baeldung/i/polluted/Payment.java | package com.baeldung.i.polluted;
import java.util.List;
public interface Payment {
void initiatePayments();
Object status();
List<Object> getPayments();
//Loan related methods
void intiateLoanSettlement();
void initiateRePayment();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/polluted/BankPayment.java | patterns-modules/solid/src/main/java/com/baeldung/i/polluted/BankPayment.java | package com.baeldung.i.polluted;
import java.util.Collections;
import java.util.List;
public class BankPayment implements Payment {
@Override
public void initiatePayments() {
}
@Override
public Object status() {
return null;
}
@Override
public List<Object> getPayments() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/fixed/LoanPayment.java | patterns-modules/solid/src/main/java/com/baeldung/i/fixed/LoanPayment.java | package com.baeldung.i.fixed;
import java.util.List;
public class LoanPayment implements Loan {
@Override
public void intiateLoanSettlement() {
}
@Override
public void initiateRePayment() {
}
@Override
public Object status() {
return null;
}
@Override
public L... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/fixed/Loan.java | patterns-modules/solid/src/main/java/com/baeldung/i/fixed/Loan.java | package com.baeldung.i.fixed;
public interface Loan extends Payment {
void intiateLoanSettlement();
void initiateRePayment();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/fixed/Payment.java | patterns-modules/solid/src/main/java/com/baeldung/i/fixed/Payment.java | package com.baeldung.i.fixed;
import java.util.List;
public interface Payment {
Object status();
List<Object> getPayments();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/fixed/Bank.java | patterns-modules/solid/src/main/java/com/baeldung/i/fixed/Bank.java | package com.baeldung.i.fixed;
public interface Bank extends Payment {
void initiatePayments();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/i/fixed/BankPayment.java | patterns-modules/solid/src/main/java/com/baeldung/i/fixed/BankPayment.java | package com.baeldung.i.fixed;
import java.util.List;
public class BankPayment implements Bank {
@Override
public void initiatePayments() {
}
@Override
public Object status() {
return null;
}
@Override
public List<Object> getPayments() {
return null;
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/Addition.java | patterns-modules/solid/src/main/java/com/baeldung/o/Addition.java | package com.baeldung.o;
public class Addition implements CalculatorOperation {
private double left;
private double right;
private double result = 0.0;
public Addition(double left, double right) {
this.left = left;
this.right = right;
}
public double getLeft() {
return ... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/Guitar.java | patterns-modules/solid/src/main/java/com/baeldung/o/Guitar.java | package com.baeldung.o;
public class Guitar {
private String make;
private String model;
private int volume;
//Constructors, getters & setters
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/Division.java | patterns-modules/solid/src/main/java/com/baeldung/o/Division.java | package com.baeldung.o;
public class Division implements CalculatorOperation {
private double left;
private double right;
private double result = 0.0;
public Division(double left, double right) {
this.left = left;
this.right = right;
}
public double getLeft() {
return left;
}
public void setLeft(doubl... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/CalculatorOperation.java | patterns-modules/solid/src/main/java/com/baeldung/o/CalculatorOperation.java | package com.baeldung.o;
public interface CalculatorOperation {
void perform();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/SuperCoolGuitarWithFlames.java | patterns-modules/solid/src/main/java/com/baeldung/o/SuperCoolGuitarWithFlames.java | package com.baeldung.o;
public class SuperCoolGuitarWithFlames extends Guitar {
private String flameColour;
//constructor, getters + setters
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/Subtraction.java | patterns-modules/solid/src/main/java/com/baeldung/o/Subtraction.java | package com.baeldung.o;
public class Subtraction implements CalculatorOperation {
private double left;
private double right;
private double result = 0.0;
public Subtraction(double left, double right) {
this.left = left;
this.right = right;
}
public double getLeft() {
r... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/Calculator.java | patterns-modules/solid/src/main/java/com/baeldung/o/Calculator.java | package com.baeldung.o;
import java.security.InvalidParameterException;
public class Calculator {
public void calculate(CalculatorOperation operation) {
if (operation == null) {
throw new InvalidParameterException("Can not perform operation");
}
operation.perform();
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/solid/src/main/java/com/baeldung/o/AbstractCalculatorOperation.java | patterns-modules/solid/src/main/java/com/baeldung/o/AbstractCalculatorOperation.java | package com.baeldung.o;
public abstract class AbstractCalculatorOperation {
abstract void perform();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/test/java/com/baeldung/decorator/DecoratorPatternIntegrationTest.java | patterns-modules/design-patterns-structural/src/test/java/com/baeldung/decorator/DecoratorPatternIntegrationTest.java | package com.baeldung.decorator;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class DecoratorPatternIntegrationTest {
@Test
public void givenDecoratorPattern_WhenDecoratorsInjectedAtRuntime_thenConfigSuccess() {
ChristmasTree tree1 = new Garland(new ChristmasTreeImpl());
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/test/java/com/baeldung/facade/CarEngineFacadeIntegrationTest.java | patterns-modules/design-patterns-structural/src/test/java/com/baeldung/facade/CarEngineFacadeIntegrationTest.java | package com.baeldung.facade;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.AppenderBase;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
impor... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/test/java/com/baeldung/adapter/IteratorAdapterUnitTest.java | patterns-modules/design-patterns-structural/src/test/java/com/baeldung/adapter/IteratorAdapterUnitTest.java | package com.baeldung.adapter;
import static org.junit.Assert.assertEquals;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.StringTokenizer;
import org.junit.jupiter.api.Test;
class IteratorAdapterUnitTest {
public static final String STRING... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/util/LoggerUtil.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/util/LoggerUtil.java | package com.baeldung.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;
import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
public class LoggerUtil {
public final static Logger LOG = Logger.getLogger("GLOBAL")... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/DecoratorPatternDriver.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/DecoratorPatternDriver.java | package com.baeldung.decorator;
import static com.baeldung.util.LoggerUtil.LOG;
public class DecoratorPatternDriver {
public static void main(String[] args) {
// christmas tree with just one Garland
ChristmasTree tree1 = new Garland(new ChristmasTreeImpl());
LOG.info(tree1.decorate());
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/ChristmasTree.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/ChristmasTree.java | package com.baeldung.decorator;
public interface ChristmasTree {
String decorate();
} | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/TreeDecorator.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/TreeDecorator.java | package com.baeldung.decorator;
public abstract class TreeDecorator implements ChristmasTree {
private ChristmasTree tree;
public TreeDecorator(ChristmasTree tree) {
this.tree = tree;
}
@Override
public String decorate() {
return tree.decorate();
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/ChristmasTreeImpl.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/ChristmasTreeImpl.java | package com.baeldung.decorator;
public class ChristmasTreeImpl implements ChristmasTree {
@Override
public String decorate() {
return "Christmas tree";
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/BubbleLights.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/BubbleLights.java | package com.baeldung.decorator;
public class BubbleLights extends TreeDecorator {
public BubbleLights(ChristmasTree tree) {
super(tree);
}
public String decorate() {
return super.decorate() + decorateWithBubbleLights();
}
private String decorateWithBubbleLights() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/Garland.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/decorator/Garland.java | package com.baeldung.decorator;
public class Garland extends TreeDecorator {
public Garland(ChristmasTree tree) {
super(tree);
}
public String decorate() {
return super.decorate() + decorateWithGarland();
}
private String decorateWithGarland() {
return " with Garland"... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/CarEngineFacade.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/CarEngineFacade.java | package com.baeldung.facade;
import com.baeldung.facade.carsystem.*;
public class CarEngineFacade {
private static final Integer DEFAULT_COOLING_TEMP = 90;
private static final Integer MAX_ALLOWED_TEMP = 50;
private FuelInjector fuelInjector = new FuelInjector();
private AirFlowController airFlowContr... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/Radiator.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/Radiator.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Radiator {
private static final Logger LOGGER = LoggerFactory.getLogger(Radiator.class);
public void on(){
LOGGER.info("Radiator switched on!");
}
public void off(){
LOGGER.i... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/TemperatureSensor.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/TemperatureSensor.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TemperatureSensor {
private static final Logger LOGGER = LoggerFactory.getLogger(TemperatureSensor.class);
public void getTemperature(){
LOGGER.info("Getting temperature from the sensor..");
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/Starter.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/Starter.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Starter {
private static final Logger LOGGER = LoggerFactory.getLogger(Starter.class);
public void start() {
LOGGER.info("Starting..");
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/FuelPump.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/FuelPump.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class FuelPump {
private static final Logger LOGGER = LoggerFactory.getLogger(FuelPump.class);
public void pump() {
LOGGER.info("Fuel Pump is pumping fuel..");
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/CoolingController.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/CoolingController.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class CoolingController {
private static final Logger LOGGER = LoggerFactory.getLogger(CoolingController.class);
private static final Integer DEFAULT_RADIATOR_SPEED = 10;
private Integer temperatureUppe... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/AirFlowMeter.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/AirFlowMeter.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AirFlowMeter {
private static final Logger LOGGER = LoggerFactory.getLogger(AirFlowMeter.class);
public void getMeasurements() {
LOGGER.info("Getting air measurements..");
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/AirFlowController.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/AirFlowController.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AirFlowController {
private static final Logger LOGGER = LoggerFactory.getLogger(AirFlowController.class);
private AirFlowMeter airFlowMeter = new AirFlowMeter();
public void takeAir() {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/CatalyticConverter.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/CatalyticConverter.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class CatalyticConverter {
private static final Logger LOGGER = LoggerFactory.getLogger(CatalyticConverter.class);
public void on() {
LOGGER.info("Catalytic Converter switched on!");
}
pub... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/FuelInjector.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/facade/carsystem/FuelInjector.java | package com.baeldung.facade.carsystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class FuelInjector {
private static final Logger LOGGER = LoggerFactory.getLogger(FuelInjector.class);
private FuelPump fuelPump = new FuelPump();
public void on(){
LOGGER.info("Fuel injector r... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/adapter/IteratorAdapter.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/adapter/IteratorAdapter.java | package com.baeldung.adapter;
import java.util.Enumeration;
import java.util.Iterator;
public class IteratorAdapter<E> implements Iterator<E> {
private Enumeration<E> enumeration;
public IteratorAdapter(Enumeration<E> enumeration) {
this.enumeration = enumeration;
}
@Override
public boo... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-structural/src/main/java/com/baeldung/adapter/StringTokenizerIteratorAdapter.java | patterns-modules/design-patterns-structural/src/main/java/com/baeldung/adapter/StringTokenizerIteratorAdapter.java | package com.baeldung.adapter;
import java.util.Iterator;
import java.util.StringTokenizer;
public class StringTokenizerIteratorAdapter extends StringTokenizer implements Iterator<String> {
public StringTokenizerIteratorAdapter(final String str, final String delim, final boolean returnDelims) {
super(str,... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/domain/InMemoryRepositoryUnitTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/domain/InMemoryRepositoryUnitTest.java | package com.baeldung.dtopattern.domain;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
class InMemoryRepositoryUnitTest {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/domain/UserUnitTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/domain/UserUnitTest.java | package com.baeldung.dtopattern.domain;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import static org.junit.jupiter.api.Assertions.*;
class UserUnitTest {
@Test
void whenUserIsCreated_shouldEncryptPassword() {
User user = new User("Test", "test", new ArrayList<>());
ass... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/api/UserControllerIntegrationTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/api/UserControllerIntegrationTest.java | package com.baeldung.dtopattern.api;
import com.baeldung.dtopattern.domain.Role;
import com.baeldung.dtopattern.domain.RoleRepository;
import com.baeldung.dtopattern.domain.User;
import com.baeldung.dtopattern.domain.UserRepository;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.restassured.http.Content... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/api/MapperUnitTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/dtopattern/api/MapperUnitTest.java | package com.baeldung.dtopattern.api;
import com.baeldung.dtopattern.domain.Role;
import com.baeldung.dtopattern.domain.User;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
class MapperUnitTest {
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/daopattern/test/UserDaoUnitTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/daopattern/test/UserDaoUnitTest.java | package com.baeldung.daopattern.test;
import com.baeldung.daopattern.daos.UserDao;
import com.baeldung.daopattern.entities.User;
import java.util.List;
import java.util.Optional;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class UserDaoUnitTest... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/seda/springintegration/SpringIntegrationSedaIntegrationTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/seda/springintegration/SpringIntegrationSedaIntegrationTest.java | package com.baeldung.seda.springintegration;
import java.util.HashMap;
import java.util.Map;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.annotation.IntegrationComponentScan;
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/seda/apachecamel/ApacheCamelSedaIntegrationTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/seda/apachecamel/ApacheCamelSedaIntegrationTest.java | package com.baeldung.seda.apachecamel;
import java.util.HashMap;
import java.util.Map;
import org.apache.camel.RoutesBuilder;
import org.apache.camel.test.junit5.CamelTestSupport;
import org.junit.jupiter.api.Test;
import com.baeldung.seda.apachecamel.WordCountRoute;
public class ApacheCamelSedaIntegrationTest exte... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/ambassadorpattern/HttpAmbassadorControllerIntegrationTest.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/ambassadorpattern/HttpAmbassadorControllerIntegrationTest.java | package com.baeldung.ambassadorpattern;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.when;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static or... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/ambassadorpattern/TestConfig.java | patterns-modules/design-patterns-architectural/src/test/java/com/baeldung/ambassadorpattern/TestConfig.java | package com.baeldung.ambassadorpattern;
import org.springframework.context.annotation.Configuration;
import org.springframework.retry.annotation.EnableRetry;
@Configuration
@EnableRetry
public class TestConfig {
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/Main.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/Main.java | package com.baeldung.dtopattern;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Main {
public static void main(String[] args) {
SpringApplication.run(Main.class, args);
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/UserRepository.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/UserRepository.java | package com.baeldung.dtopattern.domain;
import java.util.List;
public interface UserRepository {
List<User> getAll();
void save(User user);
void deleteAll();
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/UserService.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/UserService.java | package com.baeldung.dtopattern.domain;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Objects;
@Service
public class UserService {
private UserRepository repository;
public UserService(UserRepository repository) {
this.repository = repository;
}
pub... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/RoleRepository.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/RoleRepository.java | package com.baeldung.dtopattern.domain;
public interface RoleRepository {
Role getRoleById(String id);
Role getRoleByName(String name);
void save(Role role);
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/InMemoryRepository.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/InMemoryRepository.java | package com.baeldung.dtopattern.domain;
import org.springframework.stereotype.Service;
import java.util.*;
@Service
class InMemoryRepository implements UserRepository, RoleRepository {
private Map<String, User> users = new LinkedHashMap<>();
private Map<String, Role> roles = new LinkedHashMap<>();
@Ove... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/Role.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/Role.java | package com.baeldung.dtopattern.domain;
import java.util.Objects;
public class Role {
private String id;
private String name;
public Role(String name) {
this.name = Objects.requireNonNull(name);
}
public String getId() {
return id;
}
void setId(String id) {
this.... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/RoleService.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/RoleService.java | package com.baeldung.dtopattern.domain;
import org.springframework.stereotype.Service;
import java.util.Objects;
@Service
public class RoleService {
private RoleRepository repository;
public RoleService(RoleRepository repository) {
this.repository = repository;
}
public Role getOrCreate(St... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/User.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/domain/User.java | package com.baeldung.dtopattern.domain;
import javax.crypto.*;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
publi... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserIdDTO.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserIdDTO.java | package com.baeldung.dtopattern.api;
public class UserIdDTO {
private String id;
public UserIdDTO(String id) {
this.id = id;
}
public String getId() {
return id;
}
}
| java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserCreationDTO.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserCreationDTO.java | package com.baeldung.dtopattern.api;
import java.util.List;
public class UserCreationDTO {
private String name;
private String password;
private List<String> roles;
UserCreationDTO() {}
public String getName() {
return name;
}
public String getPassword() {
return passwo... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserDTO.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserDTO.java | package com.baeldung.dtopattern.api;
import java.util.List;
public class UserDTO {
private String name;
private List<String> roles;
public UserDTO(String name, List<String> roles) {
this.name = name;
this.roles = roles;
}
public String getName() {
return name;
}
... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/Mapper.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/Mapper.java | package com.baeldung.dtopattern.api;
import com.baeldung.dtopattern.domain.Role;
import com.baeldung.dtopattern.domain.User;
import org.springframework.stereotype.Component;
import java.util.ArrayList;
import java.util.List;
import static java.util.stream.Collectors.toList;
@Component
class Mapper {
public User... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
eugenp/tutorials | https://github.com/eugenp/tutorials/blob/4463e58ffb73fe599bac2479abd84598c6e70a1a/patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserController.java | patterns-modules/design-patterns-architectural/src/main/java/com/baeldung/dtopattern/api/UserController.java | package com.baeldung.dtopattern.api;
import com.baeldung.dtopattern.domain.RoleService;
import com.baeldung.dtopattern.domain.User;
import com.baeldung.dtopattern.domain.UserService;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import static java.util.stream.Collectors.toList;
@RestContr... | java | MIT | 4463e58ffb73fe599bac2479abd84598c6e70a1a | 2026-01-04T14:45:57.069771Z | false |
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