Design a class to represent a deck of cards, and implement a shuffle method for the deck of cards.

DeckOfCards.java

/* 	Design a class to represent a deck of cards, and implement a 
	shuffle method for the deck of cards. http://goo.gl/T4Bk9 	*/

import java.util.Arrays;
import java.util.Random;

public class DeckOfCards {
	public static String deck = "23456789TJQKA";
	public static int numOfShuffles = 13;
	public static void main(String[] args) {
		char[] d = new char[13];
		d = deck.toCharArray();	
		
		Random rand = new Random();
		int n = 13, randnum;

		for(int i = 0; i < numOfShuffles; i++) {
			randnum = rand.nextInt(n);
			//System.out.println(randnum);
			char temp = d[0];
			d[0] = d[randnum];
			d[randnum] = temp;
		}
		System.out.println(Arrays.toString(d));
	}
}