Generating Random Numbers

package sanchez.julio;
 
/*
 * Java Programming for Engineers Julio Sanchez Maria P. Canton
 * 
 * 
 * ISBN: 0849308100 Publisher: CRC Press
 */
 
// Java for Engineers
// Filename: RandNum
// Reference: Chapter 23
// Description:
// Generating random numbers
class RandNum {
    public static void main(String[] args) {
	int num;
	int[] dist = new int[10]; // Storage for distribution
 
	// Generate 10000 random numbers using Math.random()
	for (int x = 0; x < 10000; x++) {
	    num = (int) (Math.floor(Math.random() * 10));
	    dist[num]++;
	}
	// Display distribution of random integers in the range
	// 0 to 9
	System.out.println("Distribution using Math.random() ");
	for (int k = 0; k < 10; k++)
	    System.out.print(k + "\t");
	// Display results
	for (int y = 0; y < 10; y++) {
	    System.out.print(dist[y] + "\t");
	}
	System.out.println();
    }
}