a001. 哈囉 -- Brian Kernighan | From: [210.70.151.204] | 發表日期 : 2012-11-17 18:49

import java.io.*;

public class a001 {

public static void main(String args[])throws IOException

{

String s;

BufferedReader bu;

bu=new BufferedReader(new InputStreamReader(System.in));

 do

  {

s=bu.readLine();

System.out.println("Hello,"+s);

  }

 while (s!="");

 

 }

}