生产者消费者模式

import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JTextField; public class Store { private int count; private final int SIZE; private JFrame frame = new JFrame(); private JTextField[] fields = new JTextField[2]; public Store(int size) { this.SIZE = size; Producer producer = new Producer(this); Consumer consumer = new Consumer(this); producer.setName("生成了"); consumer.setName("消费了"); fields[0] = new JTextField(); fields[1] = new JTextField(); frame.add(fields[0], BorderLayout.NORTH); frame.add(fields[1], BorderLayout.SOUTH); producer.start(); consumer.start(); frame.pack(); frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE); frame.setVisible(true); } public void addData() { synchronized (this) { while (count == SIZE) { try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } fields[0].setText(Thread.currentThread().getName() + ++count + "件商品"); this.notifyAll(); } } public void removeData() { synchronized (this) { while (count == 0) { try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } fields[1].setText(Thread.currentThread().getName() + count-- + "件商品"); this.notifyAll(); } } public static void main(String[] args) { Store s = new Store(5); } }
public class Producer extends Thread{ private Store s; public Producer(Store s){ this.s=s; } public void run(){ while(true){ s.addData(); try { Thread.sleep((int)(Math.random()*300)); } catch (InterruptedException e) { e.printStackTrace(); } } } }
public class Consumer extends Thread{ private Store s; public Consumer(Store s){ this.s=s; } public void run(){ while(true){ s.removeData(); try { Thread.sleep((int)(Math.random()*300)); } catch (InterruptedException e) { e.printStackTrace(); } } } }