求教!!!!!!!!!!!!!!!!!
让一个程序不停的在那运行,直到命令行输入   quit打断,怎么实现,谢谢   
 PS:不是每次都要去Scanner   一下进行判断,而是我不输   quit它就不停,一直循环,直到我输   quit
------解决方案--------------------启动一个键盘监听适配器来监听是否有键盘输入,如果有则判断是否是quit 
 具体的操作是实现KeyListener接口,可以用KeyAdapter类,它已经实现了KeyListener接口
------解决方案--------------------class Monitor implements Runnable { 
 	String keys =  " "; 
 	Test t;   
 	public Monitor(Test t) { 
 		this.t = t; 
 	}  	 
 	public void run() { 
 		while (true) { 
 			try { 
 				int in = System.in.read(); 
 				if (in == 10) { 
 					if (keys.equals( "quit ")) { 
 						t.run = false; 
 						break; 
 					} 
 					keys =  " "; 
 				} 
 				else { 
 					char c = (char)(in & 0xff); 
 					if (c >   'a ' && c  <  'z ') 
 						keys += c; 
 				} 
 			} catch (Exception e) {  				 
 			} 
 		}		  	 
 	}}     
 public class Test implements Runnable{ 
 	public boolean run = true;  	 
 	public Test() { 
 	}  	 
 	public static void main(String[] args) { 
 		Thread thread = new Thread(new Test()); 
 		thread.start(); 
 	}   
 	public void run() { 
 		Thread thread = new Thread(new Monitor(this)); 
 		thread.start(); 
 		while (run) { 
 			try { 
 				Thread.sleep(1000); 
 				System.out.println( "running... "); 
 			} catch (Exception e) {  				 
 			} 
 		}		  	 
 	}  	 
 }