Using textpad with java help !!

Elfman · 07-01-2006 07:52PM #1

I'm trying to use textpad to compile java . I'e installed j2sdk1.4.2_09 and it seems to have installed fine and it seems to complie fine but when i got ot run i get the following error message : Exception in thread "main" java.lang.NoClassDefFound Error:

Any ideas ??

pH · 07-01-2006 08:11PM

Post the code, you're probably missing a static main method.

Elfman · 07-01-2006 08:18PM

Well im getting the same thing with a couple of programms so i tried this simple one :

class myfirstjavaprog
{
public static void main(String args[])
{
System.out.println("Hello World!");
}
}
the classic hello world but same reply. i tried importing java.lang but it shoul d be automatic right ? anyway didnt work.

Hobbes · 07-01-2006 08:42PM

This is one of the most common errors (gets everyone).

Make sure you add a dot to your classpath. eg.

set CLASSPATH=%CLASSPATH%;.

Then compile the java file and run it in the same directory. eg.

Elfman · 07-01-2006 08:45PM

em sorry to ask the stupid question but how do i set class path ??

shamrock2004 · 07-01-2006 09:07PM

Here you go my friend: http://www.apl.jhu.edu/~hall/java/beginner/settingup.html
Should be everything you need regarding installation and classpath issues!
Good luck.
Shamrock

pH · 08-01-2006 12:55AM

That should be working fine!

How exactly are you running this?
The class "myfirstjavaprog" should be in a file called myfirstjavaprog.java

to Compile:
>javac myfirstjavaprog.java
to Run:
>java myfirstjavaprog

(NOTE don't use the .class extension when using the java command to run).

Using textpad with java help !!

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