文件名称：thread count
文件大小：3KB
文件格式：TXT
更新时间：2015-04-17 07:14:44
adsfasdf 浅析Java中CountDownLatch用法 CountDownLatch如其所写，是一个倒计数的锁存器，当计数减至0时触发特定的事件。利用这种特性，可以让主线程等待子线程的结束。下面以一个模拟运动员比赛的例子加以说明。 import java.util.concurrent.CountDownLatch; import java.util.concurrent.Executor; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; public class CountDownLatchDemo { private static final int PLAYER_AMOUNT = 5; public CountDownLatchDemo() { // TODO Auto-generated constructor stub } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub //对于每位运动员，CountDownLatch减1后即结束比赛 CountDownLatch begin = new CountDownLatch(1); //对于整个比赛，所有运动员结束后才算结束 CountDownLatch end = new CountDownLatch(PLAYER_AMOUNT); Player[] plays = new Player[PLAYER_AMOUNT]; for(int i=0;i