Random setSeed() method in Java with Examples

The setSeed() method of Random class sets the seed of the random number generator using a single long seed.

Syntax:

public void setSeed() 

Parameters: The function accepts a single parameter seed which is the initial seed.

Return Value: This method has no return value.

Exception: The function does not throws any exception.

Program below demonstrates the above mentioned function:

Program 1:

// program to demonstrate the
// function java.util.Random.setSeed()

import java.util.*;
public class GFG {
    public static void main(String[] args)
    {

        // create random object
        Random r = new Random();

        // return the next pseudorandom integer value
        System.out.println("Random Integer value : "
                           + r.nextInt());

        // setting seed
        long s = 24;

        r.setSeed(s);

        // value after setting seed
        System.out.println("Random Integer value : " + r.nextInt());
    }
}

Output:

Random Integer value : -2053473769
Random Integer value : -1152406585

Program 2:

// program to demonstrate the
// function java.util.Random.setSeed()

import java.util.*;
public class GFG {
    public static void main(String[] args)
    {

        // create random object
        Random r = new Random();

        // return the next pseudorandom integer value
        System.out.println("Random Integer value : "
                           + r.nextInt());

        // setting seed
        long s = 29;

        r.setSeed(s);

        // value after setting seed
        System.out.println("Random Integer value : "
                           + r.nextInt());
    }
}

Output:

Random Integer value : -388369680
Random Integer value : -1154330330