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From: Stanimir Stamenkov <s7an10@netscape.net>
Newsgroups: comp.lang.java.programmer
Subject: Re: The greeting code in Java
Date: Sun, 19 Jun 2011 18:06:23 +0300
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Sun, 19 Jun 2011 16:51:19 +0200, /Aéris/:

> Yes, indeed, i did a mistake.
> Replace the .print( with a .println(, othewise output is not flushed and
> the greeting appear only after output.

No.  Your code just prints the prompt after it has got the user input:

Sun, 19 Jun 2011 15:19:58 +0200, /Aéris/:

> public class Main {
> 	public static void main(final String[] args) throws IOException {
> 		final BufferedReader in = new BufferedReader(
> 			new InputStreamReader(System.in));
> 		String s;
> 		while ((s = in.readLine()) != null&&  s.length()>  0) {
> 			System.out.print("Please enter your first name:");
> 			System.out.println("Hello, " + s);
> 		}
> 	}
> }

I guess one needs:

  	System.out.print("Please enter your first name: ");
         while ((s = in.readLine()) != null && s.length() > 0) {
             System.out.println("Hello, " + s);
             System.out.print("Please enter your first name: ");
         }

-- 
Stanimir