/** * 目标：厨师做好了菜，服务员才能端走，需要交替 */public class Main {    public static void main(String[] args) {        Food f = new Food();        Producer p = new Producer(f);        Consumer c = new Consumer(f);        new Thread(p).start();        new Thread(c).start();    }}/** * 厨师：生产者 */class Producer implements Runnable{    private Food food;    public  Producer(Food food){        this.food = food;    }    @Override    public void run() {        for (int i = 0; i <10 ; i++) {            if(i%2 == 0){                food.set("韭菜炒鸡蛋","男人多吃，有益身体健康");            }else{                food.set("葱爆腰花","补肾气");            }        }    }}/** * 服务员：消费者 */class Consumer implements Runnable{    private Food food;    public Consumer(Food food){        this.food = food;    }    @Override    public void run() {        for (int i = 0; i <10 ; i++) {            food.get();        }    }}/** * 菜实体类 */class Food{    private String name;    private String content;    private Boolean flag = true;  //true 可以生产  false可以消费    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getContent() {        return content;    }    public void setContent(String content) {        this.content = content;    }    //生产，set设置    public synchronized void set(String name,String content){        if (flag == false){            try {                this.wait(); //进入等待状态，让出cpu  java.lang.Object            } catch (InterruptedException e) {                e.printStackTrace();            }        }        this.setName(name);        try {            Thread.sleep(800);        } catch (InterruptedException e) {            e.printStackTrace();        }        this.setContent(content);        System.out.println("【生产】-->" + name + ":" + content);        flag = false;//设置可以消费        this.notify();//唤醒某一个线程    }    //消费，get获取    public synchronized void get(){        if (flag == true){            try {                this.wait(); //进入等待状态，让出cpu            } catch (InterruptedException e) {                e.printStackTrace();            }        }        try {            Thread.sleep(800);        } catch (InterruptedException e) {            e.printStackTrace();        }        System.out.println("【消费】-->" + this.getName() + ":"+ this.getContent());        flag = true;        this.notify();//唤醒某一个线程    }}