Answer Posted / harish

Inner classes nest within other classes. A normal class is
a direct member of a package, a top-level class. Inner
classes, which became available with Java 1.1, come in four
flavors:
? Static member classes
? Member classes
? Local classes
? Anonymous classes
Let's take a quick look at each in turn.
Briefly, a static member class is a static member of a
class. Like any other static method, a static member class
has access to all static methods of the parent, or top-
level, class.
Like a static member class, a member class is also defined
as a member of a class. Unlike the static variety, the
member class is instance specific and has access to any and
all methods and members, even the parent's this reference.
Local classes are declared within a block of code and are
visible only within that block, just as any other method
variable.
Finally, an anonymous class is a local class that has no
name.

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