To address the shortcomings of the implementation of nested inner classes discussed in the previous section, Java 11 introduced the notion of nestmates. Nestmates introduce a new access control ...

In Java nested classes are considered members of their enclosing class. Thus, a nested class **can be declared public, package(no access modifier), protectedand private.**Therefore nested classes in ...

In Java, nested classes are categorized as either static member classes or inner classes. Inner classes are non-static member classes, local classes, or anonymous classes.

The following class demonstrates which Map implementations and which nested Map classes are Serializable and which are not for several popular standard Map implementations.