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Nested class in Java With Example

→ class inside a class is called nested class.

→ The Main Purpose of Nested Class make the group classes that belong together which makes your code more readable and maintainable.


Example :-

Output :-

Nested class in Java

Advantage of nested class in java:

  • code Optimization
  • Easy to understand.
  • It can access all the member of outer class including private.
  • Nested classes can access all the members (data members and methods) of outer class including private.
  • As nested classes are logically grouped classes and interfaces in one place so that it is use to develop more readable and maintainable code.
  • Nested classes helps to write optimized code, as it require less code to write.

Types of Nested class in java.

Nested Class