class MyThread4 implements Runnable
{
	public void run() 
	{
		while(true)
		{
			Thread t=Thread.currentThread();
			System.out.println("子線程"+t.getName()+"在運行");
		}
	}
}

class Demo
{
	public static void main(String args[]) 
	{
		MyThread4 my=new MyThread4();
		Thread ex=new Thread(my);
		ex.start();
		
		while(true)
		{
			Thread t=Thread.currentThread();
			System.out.println("主線程"+t.getName()+"在運行");
		}
	}
}