Java--面包师与消费者2（发送线程与接收线程）

线程协作：采用信号量和同步方法使发送线程与接收线程同步运行
加锁+信号量（isEmpty）+pv操作（notify()和wait()）

public class bufferLock {//加互斥锁的缓冲区    private int value;//共享变量    private boolean isEmpty=true;    public synchronized void put(int i){//同步方法        while(!isEmpty)//生产的面包不为空时，面包师就等            try {                this.wait();//是调用该方法当前线程等待状态            } catch (InterruptedException e) {            }        value=i;//当value空，value获得值        isEmpty=false;//设置value不为空（信号量）        notify();//唤醒其他等待线程    }    public synchronized int get(){        while(isEmpty)//面包被吃完，就等待            try {                this.wait();            } catch (InterruptedException e) {            }        isEmpty=true;        notify();        return value;    }}class sender extends Thread{    private bufferLock buffer;    public sender(bufferLock buffer) {        this.buffer=buffer;    }    public void run() {        for(int i=1;i<6;i++){            buffer.put(i);            System.out.println("sender put:"+i);        }    }}class receiver extends Thread{    private bufferLock buffer;    public receiver(bufferLock buffer) {        this.buffer=buffer;    }    public void run() {        for(int i=1;i<6;i++){            System.out.println("receiver get:"+buffer.get());        }    }    public static void main(String args[]){        bufferLock buffer=new bufferLock();        (new sender(buffer)).start();        (new receiver(buffer)).start();    }}

运行结果：
sender put:1
sender put:2
receiver get:1
receiver get:2
sender put:3
receiver get:3
sender put:4
receiver get:4
sender put:5
receiver get:5