Java Thread之Sleep()案例详解

public class SleepDemo {
    public static void main(String[] args) throws InterruptedException {
        Process process = new Process();
        Thread thread = new Thread(process);
        thread.setName("线程Process");
        thread.start();
 
        for (int i = 0; i < 10; i++) {
            System.out.println(Thread.currentThread().getName() + "-->" + i);
            //阻塞main线程，休眠一秒钟
            Thread.sleep(1000);
        }
    }
}
 

class Process implements Runnable {
 
    @Override
    public void run() {
 
        for (int i = 0; i < 10; i++) {
            System.out.println(Thread.currentThread().getName() + "-->" + i);
 
            //休眠一秒钟
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
 
    }
}

public class TestSleepThread {
    public static void main(String[] args) throws InterruptedException {
        countDown(10000);
    }
 
    
    public static void countDown(long mills) {
        Date endDate = new Date(System.currentTimeMillis() + mills);
        long endTime = endDate.getTime();
 
        while (true) {
            System.out.println(new SimpleDateFORMat("hh:mm:ss").format(endDate));
            //下一秒时间
            endDate = new Date(endDate.getTime() - 1000);
            //休眠一秒钟
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            if (endTime - endDate.getTime() > mills) {
                break;
            }
        }
    }
 
}