Hi,

I have written a simple program in java (hello.java) and it is throwing an exception as "Exception in thread "main" java.lang.NoClassDefFoundError : hello ". I have defined the public class "hello" and also properly set my classpath and I really don't know what is going wrong. Please help..

Thanks already,
Deepa

I had this problem when I first started. This means that java cannot find your bytecode file. (hello.class)

As you can see your program hasn't been turned into bytecode.

so open the command prompt (Start-Run-Type "cmd")

locate the folder where your java source file is for example if it is located in a folder called app on your C: you would type
(cd c:\app) cd being change directory

then do a 'java hello'

If that doesn't work change your CLASSPATH variable with 'set CLASSPATH='

then do a 'java hello'

If none of this works send me an email and I will go through different things with you.

There are 10 sort of people that exist in this world, The ones who understand binary and the rest