java生产者消费者模式

 * 生产者
 */
public  class  extends Thread {

    private Queue<Integer> queue;
    String name;
    int maxSize;
    int i = 0;

    public (String name,Queue<Integer> queue,int maxSize){
        super(name);
        this.name = name;
        this.queue = queue;
        this.maxSize = maxSize;
    }

    
    public void run() {
        while (true){
            synchronized (queue){
                while(queue.size() == maxSize){
                    try{
                        System.out.println("Queue is full,Productr["+name+" ]thread waiting for");
                        //等待
                        queue.wait();
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                }
                System.out.println("["+name+"] producting value:+"+i );
                queue.offer(i++);
                queue.notifyAll();

                try{
                    Thread.sleep(new Random().nextInt(1000));
                }catch (Exception e){
                    e.printStackTrace();
                }
            }
        }
    }
}

public class Consumer extends Thread {

    private Queue<Integer> queue;
    String name;
    int maxSize;

    public Consumer(String name,Queue<Integer> queue,int maxSize){
        super(name);
        this.name = name;
        this.queue = queue;
        this.maxSize = maxSize;
    }

    
    public void run() {
        while (true){
            synchronized (queue){
                while (queue.isEmpty()){
                    try{
                        System.out.println("Queue is empty,Consumer ["+name+"] thread is waiting for Producer");
                        //如果为空，就等待
                        queue.wait();
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                }

                int x = queue.poll();
                System.out.println("["+name+" Consumer value : "+x);
                queue.notifyAll();

                try{
                    Thread.sleep(new Random().nextInt(1000));
                }catch (Exception e){
                    e.printStackTrace();
                }
            }
        }
    }
}

public static void main(String args[]){

        Queue<Integer> queue = new LinkedList<>();

        Thread product1 = new Producter("p-1",queue,5);
        Thread product2 = new Producter("p-2",queue,5);

        Thread consumer1 = new Consumer("C1",queue,5);
        Thread consumer2 = new Consumer("C2",queue,5);
        Thread consumer3 = new Consumer("C3",queue,5);

        product1.start();
        product2.start();

        consumer1.start();
        consumer2.start();
        consumer3.start();
    }