java.util.Random Example in Java
August 24, 2013
java.util.Random is an utility provided by java to generate pseudorandom numbers and boolean values. Random number has methods as
nextInt, nextDouble, nextLong etc. Random.setSeed can be used when two random object needs to generate same random number at a time.
Find the example to use Random class.
RandomDemo.java
package com.concretepage.util;
import java.util.Random;
public class RandomDemo {
public static void main(String[] args) {
Random random = new Random();
//Random number form 0 to 10
System.out.println("Random integer number from 0 to 10 ...");
for(int i=0; i<10;i++){
int j = random.nextInt(10);
System.out.println(j);
}
//Random boolean value
System.out.println("Random boolean values...");
for(int i=0;i<5;i++){
System.out.println(random.nextBoolean());
}
}
}
Output Random integer number from 0 to 10 ... 7 6 4 2 2 5 6 1 2 9 Random boolean values... false true false true false
