[Java] Java生产者消费者模式实例分析

/**
 * 我是生产者，负责生产
 */
public class product implements runnable {
 private queue q;
 public product(queue q) {
 this.q = q;
 }
 @override
 public void run() {
 try {
  for (int i = 0; i < 3; i++) {
  q.product("test" + i);
  }
 } catch (interruptedexception e) {
  e.printstacktrace();
 }
 }
}

/**
 *我是消费者，负责消费
 */
public class consumer implements runnable {
 private queue q;
 public consumer(queue q){
 this.q = q;
 }
 @override
 public void run() {
 try {
  for(int i=0 ; i < 3 ; i++){
  q.consumer();
  }
 } catch (interruptedexception e) {
  e.printstacktrace();
 }
 }
}

/**
 *
 *我是缓存，负责产品的存(生产后的放置)取(消费时的获取)
 */
public class queue {
 private final object lock = new object();
 private list<string> list = new arraylist<string>();
 public void product(string param) throws interruptedexception {
 synchronized (lock) {
  system.out.println("product生产");
  list.add(param);
  lock.notify();
  lock.wait();
 }
 }
 public void consumer() throws interruptedexception {
 synchronized (lock) {
  lock.wait();
  system.out.println("product消费");
  if (list.size() > 0) {
  list.remove(list.size() - 1);
  }
  lock.notify();
 }
 }
}
public class testmain {
 public static void main(string[] args) {
 queue q = new queue();
 product p = new product(q);
 consumer s = new consumer(q);
 thread t1 = new thread(p);
 thread t2 = new thread(s);
 t1.start();
 t2.start();
 }
}