1 package DEMO; 2 //主线程 3 public class Example12_2 { 4 public static void main(String [] args ) 5 { 6 Thread mydad ; //用Thread声明线程 7 Thread mymom ; 8 baba ba ; //ba是目标对象 9 mom ma ; 10 ba = new baba(); //创建目标对象 11 ma = new mom(); 12 mydad = new Thread(ba); //创建线程,其目标对象是bab 13 mymom = new Thread(ma); //创建线程 ,其目标对象是ma 14 mydad.start(); //启动线程 15 mymom.start(); 16 //主线程 17 for(int i=1 ;i<=20 ; i++) 18 System.out.print("me"+i+" "); 19 20 } 21 } 22 23 class baba implements Runnable //实现Runnable 24 { 25 public void run() 26 { 27 for(int i=1;i<=20;i++) 28 System.out.print(" dad"+i+" "); 29 } 30 } 31 32 class mom implements Runnable //实现Runnable 33 { 34 public void run() 35 { 36 for(int i=1; i<=20 ;i++) 37 System.out.print("Mon"+i+" "); 38 } 39 }