Tough question for java beginning expert

Question

Hi, y'all,
I couldn't compile "HelloWorld". I downloaded jdk1.3.1_01 and tried to compile "HelloWorld" in MS-DOS. However, the error is: "cannot read HelloWorld.java." I couldn't figure out what's wrong.
Here's my source code:---------
class HelloWorld{
public static void main (String[ ] args) {
System.out.println("What's wrong with you?");
Here's my DOS command:--------
Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:\>cd java\
C:\java>dir
Volume in drive C has no label.
Volume Serial Number is 07D1-0B0D
Directory of C:\java
11/23/2001 01:06p <DIR> .
11/23/2001 01:06p <DIR> ..
11/24/2001 01:37a 135 HelloWorld.java.txt
1 File(s) 135 bytes
2 Dir(s) 76,506,595,328 bytes free
C:\java>javac HelloWorld.java
error: cannot read: HelloWorld.java
1 error
C:\java>cd c:\
C:\>jdk1.3.1_01\bin\javac HelloWorld.java
error: cannot read: HelloWorld.java
1 error
C:\>
Please Help me. Thanks.
lee

Answer 1

Yes, notepad has this "helpful" feature of adding ".txt" to the name of files whose extension is not registered. You'll need to register the "java"-file type if you don't want to get problems like this again.
On the other hand, notepad is not a very text editor for programming in the first place, so I recommend getting a more adept one. Features that you should be looking for include sytax highlighting and bracket matching - they make it easier to spot stupid typos.