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Java 2022-03-18 03:30:02
remove item from arraylist in java
// Java.util.ArrayList.remove(Object) method example import java.util.ArrayList; import java.util.List; public class ArrayListRemoveObjectMethod { public static void main(String[] args) { List<Integer> al = new ArrayList<>(); ... Add solution -
Java 2022-03-17 20:20:04
java add a list to a list
package com.journaldev.examples; import java.util.ArrayList; import java.util.List; public class ListAddExamples { public static void main(String[] args) { List<String> vowels = new ArrayList<>(); vowels.add("A"); // [A] ... Add solution -
Java 2022-02-27 14:30:01
java type casting
Primitive Type casting and Reference Type casting PRIMITIVE CASTING: implicit casting (casting smaller type to larger int a = 100; double c = a;) explicit casting (casting larger to smaller byte b = (byte) a; REFERENCE CASTING: upcasting - implicitl... Add solution -
Java 2022-02-23 00:10:11
Create dynamic 2d array in java
// Create dynamic 2d array in java import java.util.ArrayList; import java.util.List; public class Dynamic2dArray { public static void main(String[] args) { List<int[]> li = new ArrayList<>(); li.add(new int[]{2,4,6}); ... Add solution -
Java 2022-02-11 11:50:02
spring custom auth frugalis
package com.frugalis; import java.util.ArrayList; import java.util.List; import org.springframework.security.authentication.AuthenticationProvider; import org.springframework.security.authentication.UsernamePasswordAuthenticationToken; impor... Add solution -
Java 2022-02-02 07:00:22
How to remove element from arraylist in java
// java program on ArrayList remove(int index) method example import java.util.ArrayList; import java.util.List; public class ArrayListRemoveIndex { public static void main(String[] args) { List<Integer> al = new ArrayList<>(); ... Add solution -
Other 2022-01-31 07:21:48
remove all entries of arraylist
//Creating the ArrayList ArrayList <String> names = new ArrayList<>(); //Removing all entries in the ArrayList using the clear() method names.clear() //Removing all entries in the ArrayList using the removeAll() method names.removeAll(names) Add solution -
Java 2022-01-31 03:31:00
java replace element in list
list.set(1,"new value"); //example .. List<String> list = new ArrayList<>(); list.add("one"); list.add("two"); list.add("three"); System.out.println(list); // [one,two,three] list.set(1,"new"... Add solution
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