//创建线程 class Xc3 extends Thread { public void run(){ System.out.println("当前线程的名称为"+Thread.currentThread().getName()); } } public class test29{ public static void main(String[] args){ Xc3 xc3=new Xc3(); xc3.setName("线程1");//程序会自动调用run方法 xc3.start(); Xc3 xc4=new Xc3(); xc4.setName("线程2");//程序会自动调用run方法 xc4.start(); Xc3 xc5=new Xc3(); xc5.setName("线程3");//程序会自动调用run方法 xc5.start(); } }