java线程

package test;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class Test {

	private static CountDownLatch mLatch = new CountDownLatch(4);
	static int i = 0;

	public static void main(String[] args) throws InterruptedException {
		//创建线程池，线程数3个
		final ExecutorService exec = Executors.newFixedThreadPool(3);
		for (int index = 0; index < 4; index++) {
			final int NO = index + 1;
			Runnable run = new Runnable() {
				public void run() {
					try {
						i = NO;
						System.out.println(NO + " working");
						Thread.sleep(2000);
					} catch (InterruptedException e) {
					} finally {
						mLatch.countDown();
					}
				}
			};
			exec.submit(run);
		}
		mLatch.await();
		System.out.println("finish");
		System.out.println(i);
		exec.shutdown();
	}
}

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java线程

原文：http://chendaiming.iteye.com/blog/2157368