java 生产者消费者模式 使用标志位进行判断

简介

RT

code

package com.kuang;

/**
 * Created by lee on 2021/3/30.
 */
public class TestPC2 {
    public static void main(String[] args) {
        TV tv = new TV();
        new Player(tv).start();
        new Watcher(tv).start();
    }
}

// 生产者-->演员
class Player extends Thread {
    TV tv;
    public Player(TV tv) {
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            if(i%2 == 0) {
                this.tv.play("快乐大本营");
            }else {
                this.tv.play("抖音");
            }
        }
    }
}
// 消费者-->观众
class Watcher extends Thread{
    TV tv;
    public Watcher(TV tv) {
        this.tv = tv;
    }
    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            if(i%2 == 0) {
                this.tv.watch();
            }else {
                this.tv.watch();
            }
        }
    }
}

class TV {
    String voice; // 表演的节目
    boolean flag = true;

    // 表演
    public synchronized void play(String voice) {

        if(!flag) {
            try {this.wait();}
            catch (InterruptedException e){
                e.printStackTrace();
            }
        }
        System.out.println("演员表演了:" + voice);

        // 通知观众观看
        this.notifyAll();
        this.voice = voice;
        this.flag = !this.flag;
    }

    // 观看
    public  synchronized void watch() {
        if(flag) {
            try {
                this.wait();
            }
            catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println("观看了:" + voice);
        // 通知演员表演
        this.notifyAll();
        this.flag = !this.flag;
    }
}

// 产品--》