在Java中，我们可以使用TimeUnit.SECONDS.sleep()或Thread.sleep()延迟几秒钟。

1. TimeUnit

package com.mkyong;import java.util.Date;
import java.util.concurrent.TimeUnit;public class JavaDelayExample {public static void main(String[] args) {try {System.out.println("Start..." + new Date());// delay 5 secondsTimeUnit.SECONDS.sleep(5);System.out.println("End..." + new Date());// delay 0.5 second//TimeUnit.MICROSECONDS.sleep(500);// delay 1 minute//TimeUnit.MINUTES.sleep(1);} catch (InterruptedException e) {System.err.format("IOException: %s%n", e);}}}

输出

Start...Mon Apr 08 21:42:55 SRET 2019
End...Mon Apr 08 21:43:00 SRET 2019

2.线程睡眠

package com.mkyong;import java.util.Date;public class JavaDelayExample2 {public static void main(String[] args) {try {System.out.println("Start..." + new Date());// delay 5 secondsThread.sleep(5000);System.out.println("End..." + new Date());} catch (InterruptedException e) {System.err.format("IOException: %s%n", e);}}}

参考文献

• TimeUnit JavaDoc
• 线程sleep（ ）

翻译自: https://mkyong.com/java/java-how-to-delay-few-seconds/