//This example demonstates the class Random 
//which belongs to package java.util 
//Random class has methods for generating random numbers.
//In fact the number generated are pseudo random numbers.
//For each execution, it produces different set of random numbers.
//For more details on randomnumber generator, refer to the link
// http://en.wikipedia.org/wiki/Random_number_generator
// or the following famous book (available in central library) 
// Knuth, D.E.: The Art of Computer Programming, volume 2: Seminumerical 
// Algorithms. Addison-Wesley, Reading, MA, 3rd edition, 1997.

import java.util.Random;

class random_example
{
    public static void main(String args[])
    {
	Random rand = new Random();
	//rand is now an object of class Random
	
	int value;
	for(int i = 0; i<15;i=i+1)
	{
	    value = rand.nextInt(); 
	    //rand.nextInt returns the next random number
	    value = Math.abs(value);
	    value = value%1000;
	    System.out.println(value);
	}
    }
}