public class ProducerConsumer {
    public static void main(String[] args) {
        LZ a = new LZ();
        Producer b1 = new Producer(a);
        Consumer c = new Consumer(a);
        new Thread(c).start();    
        new Thread(b1).start();                
    }
}
class MT{
    int id = 0;
    MT(int id) {
        this.id = id;
    }
    public String toString(){
        return "馒头："+id;
    }
}
class LZ{
    MT[] arrmt = new MT[6];
    int index = 0;
}
class Producer implements Runnable{
    LZ z =null;
    Producer(LZ l){
        z = l;
    }
    public synchronized void push(LZ z){
        for(int i=0; i<20; i++){
            while(z.index == z.arrmt.length){
                try{
                    this.wait();                
                }catch(InterruptedException e){
                    e.printStackTrace();
                }
            }
            this.notify();
            MT m= new MT(i);
            z.arrmt[z.index] = m;
            z.index++;
            System.out.println("生产"+m);
            try{
                Thread.sleep(500);
            }catch(InterruptedException e){
                e.printStackTrace();
            }
        }
    }
    public void run(){
        push(z);    
    }
}
class Consumer implements Runnable{
    LZ z =null;
    Consumer(LZ l){
        z = l;
    }    
    public synchronized void pop(LZ z){
        for(int i=0; i<20; i++){
            while(z.index == 0){
                try{
                    this.wait();                
                }catch(InterruptedException e){
                    e.printStackTrace();
                }
            }
            this.notify();
            z.index--;
            System.out.println("消费"+z.arrmt[z.index]);
            try{
                Thread.sleep(500);
            }catch(InterruptedException e){
                e.printStackTrace();
            }
        }
    }
    public void run(){
        pop(z);    
    }    
}