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Upload 17 final-examples.zip
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class Class1 implements Interface1 {...}
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Create 15B. Write a class based on UML diagram
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Create 15A. UML Modeling Language
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ArrayList<String> list1 = new ArrayList<String>(List.of("item1", ...));
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List, boxed()
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Create 13B. Expression Statements Values+++
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b = a++ [add, keep initial a]; ++a [add, get new 'a']
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catch (FileNotFoundException e) {...}
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try (PrintWriter file = new PrintWriter("fileName.txt")) {...}
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str.substring equals; str.charAt ==; str.endsWith
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map mapToInt mapToDouble collect
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objList.stream().filter(obj -> obj.method() == value1).forEach(obj -> ...);
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map then filter OR filter (directly)
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sum returns int - no need getAsInt()
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OptionalInt; chk ArrayList not empty -> then run getAsInt()
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OptionalInt; chk ArrayList not empty -> then run getAsInt()
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forEach
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stringList.stream().forEach(strElement -> System.out.println(strElement));
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class MinMax<T extends Comparable<T>>
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class PersonContainer<T extends Person>
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class PersonContainer<T extends Person>
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class StringSwapper implements Swapper<String> {...}
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interface Pair<T1, T2> { T1 getFirst(); T2 getSecond(); }
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this.queue.add(0, element);
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public Constructor(T param){...}; public T method1() {...}
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class Box<TYPE>{private TYPE value; ...}
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route.getDirection() == direction
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Create 02. Class Route
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UPPERCASEVALUES - for Java Constants
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enum Topic1 {VALUE1, ...}; "someStr" == Topic1.VALUE1;
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Create 16. The Last Piece, Part 3: The Game Board
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final class Class1 {...}
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public static final int VARIABLE = 2;
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final LocalVariable/ClassAttribute/MethodParam/Method/Class
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people += ((PassengerShip) ship).getPassengers();
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if (obj1 instanceof Class1) { countClass1++; }
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FIND LATEST IMPLEMENTED METHOD vs instanceof vs getClass [OBJECT TYPE]
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SubClass1 subClassVar1 = (SubClass1) superClassVar1;
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int approximation = (int) height;
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int approximation = (int) height;
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public static int howManyFit(Container largeContainer, Container smallContainer) {...}
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public static Priced mostExpensive(ArrayList<Priced> list) {...}
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Create 09B. Oldest Fairy Tale Character
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reusable method for SUPERCLASS n SUBCLASSES, ArrayList, SUPERCLASS METHOD
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condition compares using double, then return int
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@Override public int compareTo(Route other)
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int/double, str (alphabetical)
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@Override public void add(int number) {this.result += number;}
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void add(int number); double getResult();
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