Chapter    5

Mastering Advanced Language Features Part 1

In Chapters 2 through 4 I laid a foundation for learning the Java language. In Chapter 5 I build onto this foundation by introducing you to some of Java’s more advanced language features, specifically, those features related to nested types, packages, static imports, and exceptions. Additional advanced language features are covered in Chapter 6.

Mastering Nested Types

Classes that are declared outside of any class are known as top-level classes. Java also supports nested classes, which are classes that are declared as members of other classes or scopes. Nested classes help you implement top-level class architecture.

There are four kinds of nested classes: static member classes, nonstatic ...

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