多线程经典消费者生产者代码实现（Java加锁实现）

package com.huanghun.demo10;

public class Desk {

    public static int count = 10;

    public static boolean flag;

    public static final Object lock = new Object();


}

package com.huanghun.demo10;

import sun.security.krb5.internal.crypto.Des;

public class Foodie extends Thread{
    @Override
    public void run() {
        while (true){
            synchronized (Desk.lock){
                if(Desk.count == 0){
                    break;
                }
                else {
                    if(Desk.flag){
                        System.out.println("消费东西");
                        Desk.flag = false;
                        Desk.lock.notify();
                        Desk.count--;
                    }
                    else{
                        try {
                            Desk.lock.wait();
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }

                }
            }
        }
    }
}

package com.huanghun.demo10;

import sun.security.krb5.internal.crypto.Des;

public class Cooker extends Thread{
    @Override
    public void run() {
        while (true){
            synchronized (Desk.lock){
                if(Desk.count == 0){
                    break;
                }
                else{
                    if(!Desk.flag){
                        System.out.println("生产东西");
                        Desk.flag = true;
                        Desk.lock.notifyAll();
                    }
                    else {
                        try {
                            Desk.lock.wait();
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }

                }
            }
        }
    }
}

package com.huanghun.demo10;

public class Demo {
    public static void main(String[] args) {
        Cooker cooker = new Cooker();
        Foodie foodie = new Foodie();
        cooker.start();
        foodie.start();
    }
}