JAVA JUC CountDownLatch
作者:互联网
闭锁示例
class count implements Runnable{ private CountDownLatch cdl; count(CountDownLatch cdl){ this.cdl=cdl; } @Override public void run() { synchronized (this){ try { for(int i=0;i<10000;i++){ if(i%2==0){ System.out.println(Thread.currentThread().getName()+"******"+i); } } } finally { this.cdl.countDown(); } } } } public class countDownLatchTest { public static void main(String[] args) { int threadNum =5; CountDownLatch cdl = new CountDownLatch(threadNum); count c = new count(cdl); long startT = System.currentTimeMillis(); for(int i=0;i<threadNum;i++){ new Thread(c).start(); } long endT = System.currentTimeMillis(); try { cdl.await(); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("总计使用时"+(endT-startT)); } }View Code
标签:count,JUC,Runnable,JAVA,示例,cdl,CountDownLatch 来源: https://www.cnblogs.com/superxuezhazha/p/12467751.html