How to generate random number in Java using Random class ?.

Program to demonstrate how to generate random number in Java.

 

package com.hubberspot.util;

import java.util.Random;

public class RandomNumberGenerator {

    public static void main(String[] args) {
    
        // 1. create a Random object
        Random random = new Random();
        int number;
        
        for(int i=1; i < = 5; i++) { 
           
            for(int j=1; j < = 5; j++) {
                // 2. nextInt(6) will return number 
                // from 0 to 5 and adding 1 to it 
                // will return number in the range
                // 1 to 6
                number = random.nextInt(6) + 1;
                System.out.print(number + " ");
            }
            System.out.println();
        }

    }

}

Output of the program :