For local files JavApp guesses the classpath of an opened source file based upon the source path and the package header of the opened file.
Use the Compile menuitem under the Code menu. The .class file is written to the source directory by default.
Use the Run menu item on the Code menu to run the main method.
The compile and run specifications can be modified for other compile and run scenarios using the textfields in the popup menu. The default values showing in the textfields reflect the conventions describe above. A JavApp session remembers last entries when user modifies these textfields.
A runaway program (e.g. infinite loop) can be stopped using the Kill menu item under the Code menu.