JAVA模拟实现生产者消费者同步问题

JAVA模拟实现生产者消费者同步问题

模拟缓存区

public class Box {
    private int milk;
    private Boolean state = false;

    public synchronized void putMilk(int milk) {
        if (state) {
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        this.milk = milk;
        System.out.println("送奶工将第" + this.milk + "瓶奶放入奶箱");
        state = true;
        notifyAll();
    }

    public synchronized void get() {
        if (!state) {
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println("用户拿到第" + this.milk + "瓶奶");
        state = false;
        notifyAll();
    }
}

生产者

public class Produce implements Runnable {
    private Box b;

    public Produce(Box b) {
        this.b = b;
    }

    @Override
    public void run() {
        for (int i = 1; i <= 35; i++) {
            b.putMilk(i);
        }

    }
}

消费者

public class Customer implements Runnable {
    private Box b;

    public Customer(Box b) {
        this.b = b;
    }

    @Override
    public void run() {
        while (true) {
            b.get();
        }

    }
}

测试类

public class Test {
    public static void main(String[] args) {
        Box b=new Box();
        Produce p=new Produce(b);
        Customer c=new Customer(b);
        Thread t1=new Thread(p);
        Thread t2=new Thread(c);
        t1.start();
        t2.start();
    }
}