Java_生产者消费者模式

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package testdemo1;



import java.util.logging.Level;

import java.util.logging.Logger;



class Mantou {



    private int id;



    public Mantou(int val) {

        this.id = val;

    }



    public String toString() {

        return "Mantou id: " + this.id;

    }

}



class Basket {



    private Mantou[] mStack = new Mantou[6];

    private int index = 0;



    public synchronized void push(Mantou m) {

        while (index == mStack.length) {

            try {

                 this.wait();

                System.out.println("full........................!!!");

               

            } catch (InterruptedException ex) {

                Logger.getLogger(Basket.class.getName()).log(Level.SEVERE, null, ex);

            }

        }

        this.notify();

        

        mStack[index] = m;



        index++;



        System.out.println("add Mantou id= " + m + " and index= " + index);

       



    }



    public synchronized Mantou pop() {



        while (index == 0) {



            try {

                System.out.println("empty........................!!!");

                wait();

            } catch (InterruptedException ex) {

                Logger.getLogger(Basket.class.getName()).log(Level.SEVERE, null, ex);

            }

        }

        this.notify();

        index--;

        Mantou m = mStack[index];

        System.out.println("get Mantou id= " + m + " and index= " + index);



        

        return m;

    }

}



class Producer implements Runnable {



    private Basket brasket = new Basket();



    public Producer(Basket val) {

        this.brasket = val;

    }



    @Override

    public void run() {

        for (int i = 0; i < 20; i++) {

            Mantou m = new Mantou(i);

            brasket.push(m);



            try {

                //            Thread.sleep(Math);

                Thread.sleep((int) (Math.random() * 500));

            } catch (InterruptedException ex) {

                Logger.getLogger(Producer.class.getName()).log(Level.SEVERE, null, ex);

            }



        }

    }



}



class Consumer implements Runnable {



    private Basket brasket = new Basket();



    public Consumer(Basket val) {

        this.brasket = val;

    }



    @Override

    public void run() {

        for (int i = 0; i < 20; i++) {

            Mantou m = brasket.pop();

            try {

                Thread.sleep((int) (Math.random() * 1000));

            } catch (InterruptedException ex) {

                Logger.getLogger(Consumer.class.getName()).log(Level.SEVERE, null, ex);

            }

        }

    }

}



public class TestDemo1 {



    public static void main(String[] args) {

        // TODO code application logic here

        Basket s = new Basket();

        Producer producer = new Producer(s);

        Consumer consumer = new Consumer(s);

        Thread tr1 = new Thread(producer);

        Thread tr2 = new Thread(consumer);

        tr1.start();

        tr2.start();

    }



}