ArrayList<String> list1 = new ArrayList<String>(List.of("item1", ...)); 66a531a verified KaiquanMah commited on Jul 10, 2025
b = a++ [add, keep initial a]; ++a [add, get new 'a'] 982a68e verified KaiquanMah commited on Jul 10, 2025
try (PrintWriter file = new PrintWriter("fileName.txt")) {...} eb94b4a verified KaiquanMah commited on Jul 10, 2025
str.substring equals; str.charAt ==; str.endsWith b4c9a50 verified KaiquanMah commited on Jul 10, 2025
objList.stream().filter(obj -> obj.method() == value1).forEach(obj -> ...); 03741f4 verified KaiquanMah commited on Jul 10, 2025
OptionalInt; chk ArrayList not empty -> then run getAsInt() 9ba0818 verified KaiquanMah commited on Jul 10, 2025
OptionalInt; chk ArrayList not empty -> then run getAsInt() 45666b5 verified KaiquanMah commited on Jul 10, 2025
stringList.stream().forEach(strElement -> System.out.println(strElement)); 8ad5547 verified KaiquanMah commited on Jul 10, 2025
class StringSwapper implements Swapper<String> {...} ce3d78b verified KaiquanMah commited on Jul 9, 2025
interface Pair<T1, T2> { T1 getFirst(); T2 getSecond(); } 6073323 verified KaiquanMah commited on Jul 9, 2025
public Constructor(T param){...}; public T method1() {...} b415662 verified KaiquanMah commited on Jul 9, 2025
enum Topic1 {VALUE1, ...}; "someStr" == Topic1.VALUE1; 4142885 verified KaiquanMah commited on Jul 9, 2025
Create 16. The Last Piece, Part 3: The Game Board 6bd73f4 verified KaiquanMah commited on Jul 9, 2025
final LocalVariable/ClassAttribute/MethodParam/Method/Class 5e6376c verified KaiquanMah commited on Jul 9, 2025
people += ((PassengerShip) ship).getPassengers(); 16c8976 verified KaiquanMah commited on Jul 9, 2025
FIND LATEST IMPLEMENTED METHOD vs instanceof vs getClass [OBJECT TYPE] 5ecac4f verified KaiquanMah commited on Jul 9, 2025
SubClass1 subClassVar1 = (SubClass1) superClassVar1; f5d3ba7 verified KaiquanMah commited on Jul 9, 2025
public static int howManyFit(Container largeContainer, Container smallContainer) {...} 121cf62 verified KaiquanMah commited on Jul 8, 2025
public static Priced mostExpensive(ArrayList<Priced> list) {...} a63c2ad verified KaiquanMah commited on Jul 8, 2025
reusable method for SUPERCLASS n SUBCLASSES, ArrayList, SUPERCLASS METHOD 8e7d332 verified KaiquanMah commited on Jul 8, 2025
@Override public void add(int number) {this.result += number;} fe7addf verified KaiquanMah commited on Jul 8, 2025