Languages
[Edit]
EN

Java - shuffle ArrayList

0 points
Created by:
Dirask Community
6300

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

Quick solution:

Collections.shuffle(myArrayList);

 

Practical example

In this example, we use Collections.shuffle() method to randomize numbers ArrayList.

import java.util.*;

public class Example {

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

        numbers.add(1);
        numbers.add(2);
        numbers.add(3);
        numbers.add(4);
        numbers.add(5);

        System.out.println("Before: " + numbers);

        Collections.shuffle(numbers);  // shuffle ArrayList

        System.out.println("After:  " + numbers);
    }
}

Output:

Before: [1, 2, 3, 4, 5]
After:  [1, 5, 4, 3, 2]

Java Collections - ArrayList

Native Advertising
🚀
Get your tech brand or product in front of software developers.
For more information Contact us
Dirask - we help you to
solve coding problems.
Ask question.

❤️💻 🙂

Join