Advanced Class Design
You learned the basic concepts of OOP and used them to build Java programs in the preceding chapter. In this chapter, you will learn advanced concepts in OOP, support from the Java language, and the nitty-gritty of these concepts.
In the opening section, you will learn about abstract classes and their uses in practical situations. The second and third sections cover two useful and frequently used keywords, final and static. The fourth section explores the variant flavors of nested classes: static nested classes, ...