Package controller doesn't exist

Question

Help!
I'm trying to run this java program. I have four different java programs that are associated with a package. Two programs are saved in one folder and the other two are outside the folder. When I run the program, the error I receive is package **** does not exist. What I am doing wrong. Can someone help me.

Answer 1

I don't have that much time. Sorry. But here is a simple explanation.
Class A is in folder C:\myApp\a
Class A's package is a;
Class B is in folder C:\myApp\b
Class B's package is b;
Class B imports package a using
import a;
here are the commands in DOS
set CLASSPATH=c:\myApp;
cd c:\myApp\b
javac *.java