等待唤醒机制吃包子

包子类

public class Baozi {
    String pi;
    String xian ;
    //包子的状态 有 true 没有 fasle
    boolean flag =false;
}

包子铺类

public class BaoziPu extends Thread {


    private Baozi baozi;

    public BaoziPu(Baozi baozi) {
        this.baozi = baozi;
    }

    @Override
    public void run() {
        int count = 0;

        while (true) {
            synchronized (baozi) {
                if (baozi.flag == true) {
                    try {
                        baozi.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }

                //wait之后的代码
                //增加趣味 交替生产
                if (count % 2 == 0) {
                    baozi.pi = "薄皮";
                    baozi.xian = "三鲜";
                } else {
                    baozi.pi = "冰皮";
                    baozi.xian = "牛肉大葱馅";
                }
                count++;
                System.out.println("包子铺正在生产:" + baozi.pi + baozi.xian + "包子");

                try {
                    TimeUnit.SECONDS.sleep(10);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                baozi.flag = true;
                baozi.notifyAll();
                System.out.println("包子生产完毕");
            }
        }
    }
}

吃货类

public class Chihuo extends Thread {

    private Baozi baozi;

    public Chihuo(Baozi baozi) {
        this.baozi = baozi;
    }

    @Override
    public void run() {


        //死循环让 吃货一直吃包子
        while (true) {
            synchronized (baozi) {
                if (baozi.flag == false) {
                    try {
                        baozi.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                //唤醒之后
                System.out.println("吃货在吃" + baozi.pi + baozi.xian + "包子");
                baozi.flag = false;

                baozi.notify();
                System.out.println("包子吃完了,唤醒包子铺线程");
                System.out.println("===========");
            }
        }

    }
}

吃货类

  public static void main(String[] args) {

        Baozi baozi = new Baozi();

        new BaoziPu(baozi).start();
        new Chihuo(baozi).start();

    }