生产者消费者

package Test.test;

import java.util.ArrayList;
import java.util.List;

public class Plate {

    List<Object> eggs = new ArrayList<Object>();

    public synchronized Object getEgg() {
        while(eggs.size() == 0) {
            try {
                wait();
            } catch (InterruptedException e) {
            }
        }

        Object egg = eggs.get(0);
        eggs.clear();// 清空盘子
        notify();// 唤醒阻塞队列的某线程到就绪队列
        System.out.println("拿到鸡蛋");
        return egg;
    }

    public synchronized void putEgg(Object egg) {
        while(eggs.size() > 0) {
            try {
                wait();
            } catch (InterruptedException e) {
            }
        }
        eggs.add(egg);// 往盘子里放鸡蛋
        notify();// 唤醒阻塞队列的某线程到就绪队列
        System.out.println("放入鸡蛋");
    }
    
    static class AddThread extends Thread{
        private Plate plate;
        private Object egg=new Object();
        public AddThread(Plate plate){
            this.plate=plate;
        }
        
        public void run(){
            for(int i=0;i<5;i++){
                plate.putEgg(egg);
            }
        }
    }
    
    static class GetThread extends Thread{
        private Plate plate;
        public GetThread(Plate plate){
            this.plate=plate;
        }
        
        public void run(){
            for(int i=0;i<5;i++){
                plate.getEgg();
            }
        }
    }
    
    public static void main(String args[]){
        try {
            Plate plate=new Plate();
            Thread add=new Thread(new AddThread(plate));
            Thread get=new Thread(new GetThread(plate));
            add.start();
            get.start();
            add.join();
            get.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("测试结束");
    }
}