Demo.java:
package cn.xxx.demo; public class Demo { public static void main(String[] args) throws Exception{ /*for(int i = 0 ; i < 5 ;i++){ Thread.sleep(50); // 线程休眠 System.out.println(i); }*/ new SleepThread().start(); } }SleepThread(子线程类,继承Thread,重写run方法):
package cn.xxx.demo; public class SleepThread extends Thread{ public void run(){ for(int i = 0 ; i < 5 ;i++){ try{ Thread.sleep(1000); // 线程休眠 }catch(Exception ex){ } System.out.println(i); } } }