Lesson: Classes and Objects
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This section covers creating and using objects. You will learn how to instantiate an object, and,
once instantiated, how to use the dot operator to access the object's instance variables and methods.
This section covers more aspects of classes that depend on using object references and the dot operator
that you learned about in the preceding section:
returning values from methods, the this keyword, class vs. instance members, and access control.
Static nested classes, inner classes, anonymous inner
classes, and local classes are covered.
This section covers enumerations, specialized classes that allow you to define and use sets of constants.
Annotations allow you to add information to your program that is not actually part of the program. This section
describes three built-in annotations that you should know about.