Session 1 Introduction of Class and Object, Session 2 Encapsulation and Data Abstraction, Session 3 Array of Objects, Session 4 Working with STRING , Session 5 Constructor , Session 6 Passing of An Object to the Function, Session 7 Returning of An Object from the Function|| Copy Constructor , Session 8 Static Data Members , Session 9 Static Member Functions, Session 10 Friend Functions , Session 11 Polymorphism Function Overloading , Session 12 Operator Overloading.