Question about java and javac commands

[Joshua Ebarvia]

here is my layout

-> /home/name/myProject
-> inside myProject are subdirectories named sources and classes
-> inside sources there is com/test
-> inside test there is MyClass.java with a package declaration in file package com.test;

I changed my directory to myProject and invoked the command

 javac -d classes sources/com/test/MyClass.java   

As it was expected it created classes/com/test/MyClass.class

Here is my question. I have tried to invoke the java command to run Test.class.

When I'm in myProject, thats /home/name/myProject

java -cp /home/name/myProject/classes/test MyClass //full path, i get NoClassDefError
java -cp classes/com/test MyClass //relative, i get NoClassDefError

How am I gonna run it?

Regards,

[Henry Wong]

I am not completely sure you compiled it correctly, but assuming that you did, the command should be....

java -cp /home/name/myProject/classes com.text.MyClass

The purpose of the classpath is to specify the top of the root -- which is /home/name/myProject/classes. And you need to specify the fully qualified name of the class, which is com.text.MyClass.

And this should work anywhere. If you want to do it without specifying the classpath... You can either set the CLASSPATH environment var, or just work from the root.

cd /home/name/myProject/classes
java com.text.MyClass

Henry