模拟洗牌程序

Card类：用于表示扑克牌的点数。

public class Card {
	String points, colors;
	
	public Card(String points, String colors)
	{
		this.points = points;
		this.colors = colors;
	}
	

	public String getPoint()
	{
		return points;
	}
	
	public String getColors()
	{
		return colors;
	}
	
	public String toString()
	{
		return colors + " " + points;
	}
}

DeckOfCards类：用于创建52张扑克和洗牌，洗牌运用到随机算法。

import java.util.Random;

public class DeckOfCards {
	String[] p = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"};
	String c[] = {"红桃", "方块", "梅花", "黑桃"};
	
	Card DeckCard[] = new Card[52];
	
	public void CreateCard()
	{
		for(int j = 0; j < p.length; j++)
		{
			for(int i = 0; i < c.length; i++)
			{
				DeckCard[i * 13 + j] = new Card(p[j], c[i]);
			}
		}	
	}
	
	public void ShowCard()
	{
		for(int i = 0; i < 52; i++)
			System.out.print(DeckCard[i] + " ");
	}
	
	public void ShuffleCards()
	{
		Random rand = new Random();
		for(int i = DeckCard.length - 1; i > 0; i--)
		{
			int a = rand.nextInt(i + 1);
			
			Card t = DeckCard[i];
			DeckCard[i] = DeckCard[a];
			DeckCard[a] = t;
			
		}
	}
}

Test类:用于测试

public class Test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		DeckOfCards test = new DeckOfCards();
		test.CreateCard();
		test.ShowCard();
		
		System.out.println("\n");
		
		test.ShuffleCards();
		test.ShowCard();
	}

}

结果：

屏幕不够宽，显示一部分结果。