How to reverse ArrayList in Java

by Online Tutorials Library July 22, 2022

How to reverse ArrayList in Java?

The reverse method of Collections class can be used to reverse any collection. It is a static method. Let’s see the signature of reverse method:

Let’s see a simple example to reverse ArrayList in Java:

 public class ReverseArrayList { public static void main(String[] args) { List<String> l = new ArrayList<String>(); l.add(“Mango”); l.add(“Banana”); l.add(“Mango”); l.add(“Apple”); System.out.println(“Before Reversing”); System.out.println(l.toString());  Collections.reverse(l); System.out.println(“After Reversing”); System.out.println(l); } } 

Output:

Before Reversing [Mango, Banana, Mango, Apple] After Reversing [Apple, Mango, Banana, Mango]

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