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Java - reverse ArrayList

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Created by:
Emerson-V
213

In this article, we would like to show you how to reverse the ArrayList in Java.

Quick solution:

Collections.reverse(myArrayList);

 

Practical example

In this example we use Collections.reverse() to reverse the numbers ArrayList.

import java.util.*;

public class Example {

    public static void main(String[] args) {
        List<Integer> numbers = new ArrayList<>();

        // add items to the ArrayList
        numbers.add(1);
        numbers.add(2);
        numbers.add(3);

        // reverse ArrayList
        Collections.reverse(numbers);

        System.out.println(numbers);
    }
}

Output:

[3, 2, 1]

Java Collections - ArrayList

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