OOPS Concepts:
  1) Encapsulation: Wrapping up of data and methods in to a
single unit is called as encapsulation.

  2) Abstraction: It Supports Abstarction

  3) Inheritence:Process of Aquiring properties from one
object to another without changes.

 4) Polymorphism:Process of aquiring properies from one
object to anotherwith changes.

                poly=many

               morphism=forms

5) Message Passing:message passing is possible from one
object to another.

6) Robust and Secure: every object is strong one.         
every object is secure one with their access specifiers.