Introduction to Programming

Manual setting

There are two ways to set it:

• Via the -classpath command-line option
• Via the CLASSPATH environment variable

We will describe how to use the -classpath option first. It has the same format in the javac and java commands:

-classpath dir1;dir2\*;dir3\alibrary.jar  (for Windows)javac -classpath dir1:dir2/*:dir3/alibrary.jar   (for Lunix)

In the preceding example, dir1, dir2, and dir3 are folders that contain the files of the application and the third-party .jar files the application depends on. Each can include a path to the directory, too. The path can be absolute or relative to the current location where you run this command.

If a folder does not contain .jar files (it has only .class files, for example), it is enough to have ...