009 LEARNINGS

where child class inherits parent class features with its own features . that we don't have to write code again and again Parent class ----  class   human being  Child class ---  class male extends human being

  Object Oriented Programming is used to implement real world  entities like inheritance, hiding, polymorphism etc in programming. Class :- it is a  definition  ---- mamals >human beings > male                                                                                        >female Object :- male guri=new male();