Collections.shuffle(List) in Java

Collections.shuffle(List): This method is available in java.util.Collections class of Java.

Syntax:

void java.util.Collections.shuffle(List<?> list)

This method takes one argument. This method randomly permutes the specified list using a default source of randomness.

Note: All permutations occur with approximately equal likelihood.

Parameters: One parameter is required for this method.

list: the list to be shuffled.

Throws:

1. UnsupportedOperationException - if the specified list or its list-iterator does not support the set operation.

Approach

Java

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Collectionsshuffle {
    public static void main(String[] args) {

        List<Integer> arrlist = new ArrayList<Integer>();

        arrlist.add(12);
        arrlist.add(56);
        arrlist.add(899);
        arrlist.add(65);
        arrlist.add(5);
        Collections.shuffle(arrlist);

        System.out.println(arrlist);

    }
}

Output:

[5, 56, 12, 65, 899]