INSTITUTE OF DISTANCE AND OPEN LEARNING
                    University of Mumbai
                     F.Y.B.Sc. (I.T)
                    SEMESTER - II
                  OBJECT ORIENTED
                   PROGRAMMING
               SUBJECT CODE : USIT 201
                                         © UNIVERSITY OF MUMBAI
                                             Prof. Suhas Pednekar
                                                Vice Chancellor
                                             University of Mumbai
                    Prof. Ravindra D. Kulkarni                      Prof. Prakash Mahanwar
                        Pro Vice-Chancellor,                                Director,
                       Univeristy of Mumbai                        IDOL, University of Mumbai
                 Programe Co-ordinator : Shri Mandar Bhanushe
                                           Head, Faculty of Science and Technology IDOL
                                           University of Mumbai - 400098
                 Course Co-ordinator     :  Gouri S. Sawant
                                           Assistant Professor, B.Sc. IT, IDOL
                                           University of Mumbai - 400098
                 Course Writers          :  Abhijit Kale
                                            Assistant Prof. VPM’s B.N.Bandodkar college of Science
                                         :  Vipul Chavan
                                            Assistant Prof. VPM’s B.N.Bandodkar college of Science
                                         :  Tejas Jadhav
                                            Assistant Prof. VPM’s B.N.Bandodkar college of Science
                                         :  Vishal Khandekar [Visiting faculty]
                                            K.J. Somaiya Institute of Management,
                                            Mumbai K.J.Somaiya
                                         :  Inumarthi V Srinivas
                                            Assistant Prof. K.J. Somaiya  Institute of Management,
                                            Mumbai
               April, 2021  Print - 1
                 Published by            :  Director
                                            Institute of Distance and Open Learning,
                                            University of Mumbai,
                                            Vidyanagari, Mumbai - 400 098.
                 DTP Composed by         : Mumbai University Press
                                           University of Mumbai, Vidyanagari,
                                           Santacruz (E.), Mumbai - 400 098.
                 Printed by              :
                                                      ii
                     CONTENTS
       Chapter No.   Title           Page No.
              Unit 1
         1.   Objects Oriented Methodology ........................................ 1
         2.   Principles of Oops ........................................................... 10
              Unit 2
         3.   Classes and Objects ......................................................... 17
         4.   Constructors and Destructors .......................................... 58
              Unit 3
         5.   Polymorphism ................................................................. 64
         6.   Virtual Functions ............................................................. 80
              Unit 4
         7.   Inheritance ....................................................................... 89
         8.   Exception Handling .........................................................114
              Unit  5
         9.   Templates ........................................................................ 128
         10.  Working with Files ......................................................... 137
                         iii
               OBJECT ORIENTED PROGRAMMING
                         F.Y.B.Sc. (I.T)
                        SEMESTER - II
                         SYLLABUS
                             iv