java模拟赌神洗牌代码

/**
 * 模拟股神洗牌 1. 52张牌 2. 4种花 13种牌号
 * 
 * @author Administrator
 *
 */
public class Shuffle {

	public static void main(String[] args) {
		int[] cards = new int[52];
		String[] color = { "红桃", "黑桃", "方块", "梅花" };
		String[] num = { "A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K" };

		for (int i = 0; i < cards.length; i++) {
			cards[i] = i;
		}

		for (int j = 0; j < cards.length; j++) {

			System.out.printf("%s-%s\t", color[j / 13], num[j % 13]);
			if ((j + 1) % 13 == 0) {
				System.out.println();
			}
		}
		System.out.println("--------------------------------------------------------");

		for (int i = 0; i < cards.length; i++) {
			int ramIndex = (int) (Math.random() * 52);
			int temp = cards[i];
			cards[i] = cards[ramIndex];
			cards[ramIndex] = temp;

		}
		for (int j = 0; j < cards.length; j++) {

			System.out.printf("%s-%s\t", color[cards[j] / 13], num[cards[j] % 13]);
			if ((j + 1) % 13 == 0) {
				System.out.println();
			}
		}

	}
}