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/* Reverse order of all elements of Java ArrayList Example This java example shows how to reverse the order of all elements of Java ArrayList using reverse method of Collections class. */ import java.util.ArrayList; import java.util.Collections; public class ReverseOrderArrayListExample { public static void main(String[] args) { //create an ArrayList object ArrayList arrayList = new ArrayList(); //Add elements to Arraylist arrayList.add("A"); arrayList.add("B"); arrayList.add("C"); arrayList.add("D"); arrayList.add("E"); System.out.println("Before Reverse Order, ArrayList Contains : " + arrayList); /* To reverse the order of all elements of Java ArrayList use, static void reverse(List list) method of Collections class. This method reverse the order of elements of specified list. */ Collections.reverse(arrayList); System.out.println("After Reverse Order, ArrayList Contains : " + arrayList); } } /* Output would be Before Reverse Order, ArrayList Contains : [A, B, C, D, E] After Reverse Order, ArrayList Contains : [E, D, C, B, A] */ |
un grand merci chef !
How can I make a new arrayList form that reverse result?