If you want to prepare an application for use by another programmer,
then file out the application using the development environment's
file-out point-and-click ritual.
You can file out a class and all its methods or just a single method.
If you want to make use of an application that has been filed out,
then file in the application using the development environment's
file-in point-and-click ritual.
If you want a program to file in an application, then instantiate the
following pattern:
(File pathName: 'file name') fileIn
You can write programs using an ordinary editor by exploiting the
chunk format, but such programming practice is strongly discouraged.