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小編給大家分享一下java多線程wait()和notify()如何使用,希望大家閱讀完這篇文章之后都有所收獲,下面讓我們一起去探討吧!
注:wait()和notify()應(yīng)當(dāng)用在synchronized內(nèi) package com.test; import java.util.ArrayList; public class ThreadWaitTeste { public static void main(String[] args) { ArrayList<String> ar = new ArrayList<String>(); Product p = new Product(ar); Consumer c = new Consumer(ar); Thread t1 = new Thread(p); Thread t2 = new Thread(c); t1.start(); t2.start(); } } class Product implements Runnable{ ArrayList<String> array; public Product(ArrayList<String> array){ this.array= array; } public void run() { while (true){ synchronized(array){ if(this.array.size()<5){ this.array.add("test!"); this.array.add("test!"); this.array.add("test!"); this.array.add("test!"); System.out.println("Product size : "+array.size()); }else{ System.out.println("Product wait size : "+array.size()+"數(shù)量少于5,等待......"); try { array.wait(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } } } class Consumer implements Runnable{ ArrayList<String> array; public Consumer(ArrayList<String> array){ this.array= array; } public void run() { while(true){ synchronized(array){ if(this.array.size()>=5){ this.array.remove(1); System.out.println("Consumer size : "+array.size()); }else{ try { array.notifyAll(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } } }
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