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Answer the questions (i) and (ii) after going through the following class : class Exam{int Rollno;char Cname[25];float Marks ;public :Exam( ) //Function 1Rollno = 0 ;Cname=””;Marks=0.0;}Exam(int Rno, char candname) //Function 2{Rollno = Rno ;strcpy(Cname,candname);}~Exam( ) //Function 3{cout << “Result will be intimated shortly” << endl ;}void Display( ) //Function 4{cout << “Roll no :”<<Rollno;cout<<”Name :” <<Cname;cout <<” Marks:”<<Marks;}} ;(i) Which OOP concept does Function 1 and Function 2 implement.Explain?(ii) What is Function 3 called? When will it be invoked? |
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Answer» (i) Constructor Overloading /Polymorphism, as multiple definitions for Constructors, are given in the same scope. Function 1 is a Default constructor and function 2 is a Parameterized constructor. (ii) Function 3 is a Destructor which is invoked when the object goes out of scope. |
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