SleepingTask.java

package org.javacore.thread;

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

/**
 * Created by BYSocket on 2015/11/2.
 *
 * Copyright [2015] [Jeff Lee]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @author Jeff Lee
 * @since 2015-11-3 09:04:16
 * 	休眠线程sleep的使用
 */
public class SleepingTask extends LiftOff {
    @Override
    public void run(){
        while(countDown-- > 0){
            try {
                System.out.println(status());
                // 老版本调用：Thread.sleep(1000);
                TimeUnit.MICROSECONDS.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        // 创建新的线程池
        ExecutorService exec = Executors.newCachedThreadPool();
        for (int i = 0; i < 5;i++)
            exec.execute(new SleepingTask());// 由线程池决定执行线程
        // 顺序关闭，执行以前提交的线程，不接受新的线程
        exec.shutdown();
    }
}