发牌程序（一）

package SendCard;

import java.awt.Color;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;

public class DealCard {
	public DealCard(int cardMax, int personNumber) {
		CardBuffer cardbuffer = new CardBuffer(personNumber);
		new SendCardThread(cardbuffer, cardMax).start();
		String[] titles = { "北", "东", "南", "西" };
		int[] x = { 300, 550, 300, 50 };
		int[] y = { 200, 320, 440, 320 };
		for (int i = 0; i < personNumber; i++) {
			new ReceiveCardThread(cardbuffer, i, titles[i], x[i], y[i]);
		}
	}

	public static void main(String[] args) {
		new DealCard(52, 4);// 52张牌，4个人收
	}
}

class CardBuffer {
	private int personNumber;// 多少人接收
	private int value;
	private int order;// 接牌的循序
	private boolean isEmpty;// 旗杆标志

	public CardBuffer(int personNumber) {
		this.personNumber = personNumber;
		isEmpty = true;
		order = 0;
	}

	public synchronized void put(int value) {
		while (!isEmpty) {// 要放入数据，必须buffer为空
			try {
				this.wait();
			} catch (InterruptedException e) {
				System.out.println("buffer不为空，等待异常！！");
			}
		}
		this.value = value;
		isEmpty = !isEmpty;
		this.notifyAll();
	}

	public synchronized int get(int order) {
		while (isEmpty || this.order != order) {// 只有是有序的人才能接收
			try {
				this.wait();
			} catch (InterruptedException e) {
				System.out.println("buffer为空，等待异常！！");
			}
		}
		isEmpty = !isEmpty;
		this.notifyAll();
		this.order = (this.order + 1) % this.personNumber;// 有序发牌
		return value;
	}

}

class SendCardThread extends Thread {
	private CardBuffer buffer;
	private int cardMax;
	private int[] cardNumber;// 0 1 2 3 4 5 .... 51

	public SendCardThread(CardBuffer buffer, int cardMax) {
		this.buffer = buffer;
		this.cardMax = cardMax;
		this.setPriority(MAX_PRIORITY);
		cardNumber = new int[cardMax];
		for (int i = 0; i < cardNumber.length; i++) {// 初始化牌
			cardNumber[i] = i;
		}
	}

	public int[] shuffle(int[] cleancard) {
		if(cleancard==null||cleancard.length==0){
			return null;
		}
		int[] mycleancard = new int[cleancard.length];
		for (int i = 0; i < mycleancard.length; i++) {
			mycleancard[i] = cleancard[i];
		}
		int temp = 0, rand;
		for (int i = 0; i < mycleancard.length; i++) {// 第i个的元素与第rand个的元素 交换
			rand = (int) (Math.random() * 100) % cardMax;// 交换位置,错序
			temp = mycleancard[rand];
			mycleancard[rand] = mycleancard[i];
			mycleancard[i] = temp;
		}
		return mycleancard;
	}

	@Override
	public void run() {
		int[] mycard = shuffle(cardNumber);
		for (int i = 0; i < mycard.length; i++) {
			buffer.put(mycard[i]);
		}
		for (int i = 0; i < 4; i++) {// 使4个接收线程关闭
			buffer.put(-1);
		}
	}

}

class ReceiveCardThread extends JFrame implements Runnable {
	private CardBuffer buffer;
	private int order;
	private JTextArea text;
	private Color[] colors;

	public ReceiveCardThread(CardBuffer buffer, int order, String title, int x,
			int y) {
		super(title);
		setLocation(x, y);
		setSize(250, 100);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		this.buffer = buffer;
		this.order = order;
		this.buffer = buffer;
		text = new JTextArea();
		text.setLineWrap(true);
		text.setEditable(false);
		getContentPane().add(text);
		colors  = new Color[] {Color.BLACK,Color.RED,Color.GRAY,Color.pink};

		setVisible(true);
		new Thread(this).start();
	}

	@Override
	public void run() {
		while (true) {
			int value = buffer.get(order);
			int color = value/13;
			if(value==-1){
				return ;
			}
			text.append(String.format("%4d", value));
			try {
				Thread.sleep(30);
			} catch (InterruptedException e) {
				System.out.println("qwer");
			}
		}
	}

}