Day 6. Packages, Interfaces, and Other Class Features

Classes, the templates used to create objects that can store data and accomplish tasks, turn up in everything you do with the Java language.

Today, you extend your knowledge of classes by learning more about how to create them, use them, organize them, and establish rules for how other classes can use them.

The following subjects are covered:

Image Controlling access to methods and variables from outside a class

Image Finalizing classes, methods, and variables so that their values or definitions cannot ...

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