Appendix D
Univerter Architecture
Chapter 1 introduced Univerter, an app for performing unit conversions. Although lack of space in that chapter prevented a detailed exploration of this app’s architecture, Appendix D compensates by exploring Univerter’s source code, resource files, and its manifest.
Exploring the Source Code
Univerter’s source code is spread across four files: Category.java, Conversion.java, Converter.java, and Univerter.java. Each file begins with a package statement, which indicates that the file’s class is a member of the ca.tutortutor.univerter package. Every reference type that is part of an app must belong to a package.
NOTE: All reference types except for those being reused from another app must belong to the same package. ...
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