Java--发牌程序（一对多线程之间的协作）

import java.awt.Container;
import java.awt.Font;
import java.awt.GridLayout;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Random;

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

//发牌程序
public class cardBuffer {

    private int value;
    private int order=0;
    private boolean isEmpty;

    public synchronized void put(int i){
        while(!isEmpty)//没有发牌，value值为空，等待
            try {
                this.wait();
            } catch (InterruptedException e) {

            }
        isEmpty=false;//标记value值不为空
        value=i;//value获得一张牌
        notifyAll();//唤醒所有等待共用锁的线程
    }
    public synchronized int get(int order){
        while(isEmpty || (this.order!=order))//玩家的牌value是空或者没有轮到自己的时候等待
            try {
                this.wait();
            } catch (InterruptedException e) {

            }
        isEmpty=true;//标记value值为空
        notifyAll();//唤醒所有其他等待的线程
        this.order=(this.order+1)%4;//加1使牌的次序轮转
        return value;
    }
}
//搜的线程只管搜，发牌线程只管发牌
class player extends Thread{

    private cardBuffer cB;
    private JTextArea text;
    private int order;//信号量，约定取牌线程
    public player(cardBuffer cB, JTextArea text, int order) {
        this.cB = cB;
        this.text = text;
        this.order = order;
    }
    public void run() {
        while(true){
            text.append(" "+cB.get(this.order));//按顺序给每一个玩家加上发了的排
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {

            }
        }
    }
}
class sender extends Thread{

    private cardBuffer cB;
    private int count;
    private java.util.ArrayList<Integer> list;//数组集合
    public sender(cardBuffer cB, int count) {
        this.cB = cB;
        this.count = count;
        list=new ArrayList<Integer>();
        for(int i=1;i<=this.count;i++){
            list.add(new Integer(i));//把1~52加入数组中
            java.util.Random rand=new Random();
            java.util.Collections.shuffle(list, rand);//shuffle洗牌算法
        }
    }
    public void run() {
        //1
        Iterator<Integer> it=list.iterator();
        while(it.hasNext()){
            cB.put((Integer)it.next());//把52张牌发出去
        }
        //2
// for(int i=1;i<=this.count;i++){
// cB.put(((Integer)list.get(i-1)).intValue());
// }
    }
}
class cardJFrame extends JFrame{
    public cardJFrame() {
        super("发牌游戏");
        this.setBounds(300, 240, 460, 200);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        Container c=this.getContentPane();
        c.setLayout(new GridLayout(3,3));
        c.add(new JPanel());

        JTextArea text[] =new JTextArea[4];//4个玩家
        Font f=new Font("Helvetia", Font.PLAIN, 16);//字体
        for(int i=0;i<text.length;i++){
            text[i]=new JTextArea();
            text[i].setLineWrap(true);//设置文本自动换行
            text[i].setEditable(false);//不可编辑
            text[i].setFont(f);
            c.add(text[i]);
            c.add(new JPanel());
        }
        this.setVisible(true);
        cardBuffer cB=new cardBuffer();//缓存
        sender s=new sender(cB, 52);//new一个发送线程
        s.setPriority(10);//设置最高优先级
        s.start();
        for(int i=0;i<text.length;i++){//玩家依次发牌
            (new player(cB,text[i],i)).start();
        }

    }
    public static void main(String arg[]){
            new cardJFrame();
        }
}

程序运行结果