Nested Classes

Java provides a facility like, you can define a class inside other class. This feature is called Nested classes.

    Example

    class OuterClass {

        class NestedClass {

        }

    }

Nested Classes can be static or non-static. A Nested class can be private, public, protected and default. Non-static nested classes are called inner classes.

    Example

    class OuterClass {   

        static class StaticNestedClass {

        }

        class InnerClass {

        }

    }

Uses Of Nested classes

1. Improve Encapsulation : We can make the nested classes as private, so outside world these nested classes are not visible.

2. More readable code : Making small nested classes and enclosing thse with outer classes, makes the code readable

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