生产者消费者

package com.kaibing.design;

public class ProductorAndCustomer {


    public static void main(String[] args) {
        Clerk clerk = new Clerk();

        Productor productor = new Productor(clerk);
        Customer customer = new Customer(clerk);

        new Thread(productor, "生产者A：").start();
        new Thread(customer, "消费者A：").start();

        new Thread(productor, "生产者B：").start();
        new Thread(customer, "消费者B：").start();
    }

    static class Clerk {//店员类

        private int product = 0;

        public synchronized void get() {//进货
            while (product >= 1) {//容量为1
                System.out.println("库存已满");
                try {
                    this.wait();//等待:为了避免虚假唤醒，wait在循环中使用
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            //进货
            System.out.println("库存" + ++product);
            this.notifyAll();//唤醒
        }

        public synchronized void sale() {//卖货
            while (product <= 0) {
                System.out.println("库存已空");
                try {
                    this.wait();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            System.out.println("卖货" + --product);
            this.notifyAll();//唤醒
        }
    }

    static class Productor implements Runnable {

        private Clerk clerk;

        public Productor(Clerk clerk) {
            this.clerk = clerk;
        }

        @Override
        public void run() {
            for (int i = 0; i < 10; i++) {
                try {
                    Thread.sleep(200);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                clerk.get();//消费货物
            }
        }
    }

    static class Customer implements Runnable {

        private Clerk clerk;

        public Customer(Clerk clerk) {
            this.clerk = clerk;
        }

        @Override
        public void run() {
            for (int i = 0; i < 10; i++) {

                clerk.sale();//消费货物
            }
        }
    }


}