//生产者消费者模型:信号灯法,标志位解决 public class TestThread07 { 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){ tv.play("快乐大本营"); }else{ tv.play("抖音:记录美好生活"); } } } } //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++) { tv.watch(); } } } class TV{ //演员表演,观众等待 //观众观看,演员等待 String voice;//表演的节目 boolean flag = true; //表演 public synchronized void play(String voice){ if(!this.flag){ try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } System.out.println("演员表演了:"+voice); this.notifyAll();//通知观众观看 this.voice = voice; this.flag = !this.flag; } public synchronized void watch(){ if(flag){ try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } System.out.println("观看了:"+voice); this.notifyAll();//通知演员表演 this.flag = !this.flag; } }
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