Managing Your Programming Environment
For the most part how you organize and manage your programming
environment is as personal as decorating your home. However,
there are some things that you must do for your classes to
work properly with the Java compiler and interpreter,
and there are some things that you should do to make your
life easier.
You use the environment variable called CLASSPATH to indicate
to the interpreter where your classes are located on your system.
As your code base of Java classes grows, you will need to
organize your classes and your directory structure in a
way to provide an efficient and convenient programming environment.
One of the easiest ways to organize your work is
to group related classes and interfaces together into
Java packages.