C++ Question answers

 set 16

Group A

1 a. what is operator overloading? what are the benefits of operator overloading?

   b. write a program in C++ to overload '-' operator to find difference of two complex number 

2 a. what is static data member and static member function? how can we overload a function?

   b.write a program to add two objects of class named 'Time', passing objects as arguments. The 'Time'         class contains hour, minute and second as its private data members. construct appropriate member             functions. Input should be interactive.

3 a.what is inheritance? Describe different types of inheritance.

   b.write a program to create a employee class EMP with data member(id, name address). Derive a class          SALARY with data member(basicsal, post) and again derive class RECORD with data

      member(month, absent, total) and display employee complete information where total is calculated by       deducing total "absent" days form "basicsal".

Group B

4. Discuss automatic conversion and casting with example? Differentiate between POP and OOP.

5. what is function overloading? Explain it with its benefit and example.

6. Why we need constructor and destructor in the class? Explain different types of constructor.

7. write a program to demonstrate conversion between object and basic type

8. what is polymorphism? explain early binding and late binding concept with program.

9. How can we work with file in C++? Explain different file operating modes with example.

10. Mention importance of template. write a program to swap contents of two variables of type int, float          and double using function template.

11. What is Exception? How can we handle the exception? Explain with an example.

12. Short notes on : 1. virtual function and pure virtual function. 2. class template 3. new and delete              operators.

Set 17

Group A

1 a. Explain features of OOP.

    b. Write a program to add two objects of a class using friend function. The class consists of hour and minute as its data member, input(), sum() and output() as its member functions.

2 a. what do you mean by type conversion? Explain its types.

    b. What is inline function? Using inline function, write a program to add two integers and returns sum.

3 a. what is access specifier? Discuss its types.

    b. Suppose an electronic store sell ten types of mobile phone. each phone has its own model number, screen size, RAM size and price. Write a program to create a file named "mobile.txt" that store information for ten mobile phones and display all the information.

Group B

4. write a program with an overloaded function calc_area() that calculates and returns area of circle and rectangle. Assume appropriate number and type of arguments and return type.

5. what are the roles of constructor and destructor? write a program to demonstrate parameterized and copy constructor.

6. Mention rules for overloading an operator. Write a program to convert class type of data into basic type.

7. Assume that a bank maintains two kinds of accounts for customers, one called as savings account and the other as current account. The savings account provides compound interest at the annual rate of 10%. Current account holders get simple interest of 5% per year. Create a class account that stores customer name and account number. From this, derive the classes: current_account and saving_account. Include necessary member functions and calculate the total amount of money in an account for both types of customers.

8. When do we use virtual function? Differentiate early and late binding.

9.Write a program to sort N numbers in ascending order using a function template.

10. Explain different types of inheritance with their syntax.

11. why do we need exception handling? Explain with an example.

12. Short notes on : 1. static data members and static member functions 2. This pointer 3. Namespaces

Set 18

Group A

1 a. Define access modes within a class. How can we access the class member? list out the characteristics of friend function.

   b. write a program to demonstrate constructor overloading.

2. Define operator overloading with general rules. Explain types conversion and write a program for overloading the assignment operator.

3 a. What are major and essential feature that make program object oriented. If a base and derived class each include a member function with same name, which member function will be called by an object of a derived class and why? Explain with example.

   b. what is abstract class? Write a program in C++ that implements the concept of multilevel inheritance.

Group B

4.Discuss access specifier. Describe static data members and static member functions with a suitable program.

5. Define constant pointer and pointer to constant with a suitable example. write a program to demonstrate conversion from one class to another class type without using constructor.

6. Discuss default argument. Write a program to find perimeter of a square, rectangle and circle using function overloading.

7. Explain polymorphism and compare compile time and run time polymorphism. Describe virtual and pure virtual function with an example.

8. Explain the role of seekg(), seekp(), tellg(), and tellp() functions in the process of random access in a binary file. How can we open a text file and read from it.

9. Define template. write a program using function temple to find the sum of first and last element of an array of size, N of type int and float.

10. What are advantages of the exception handling mechanism? Explain the components of exception handling mechanism with suitable example.

11. Write short notes on 1. abstract class 2. arrays in C++ 3. new and delete operator

Set 19

Group A

1 a. How data hiding is accomplished?

    b. Differentiate between object oriented paradigm and procedural oriented paradigm.

    c. Discuss implicit and explicit type conversion with proper examples.

2 a. Discuss static data member and static member function with proper illustrations.

    b. Write a program to illustrate copy constructor.

    c. Write a program to add two complex numbers of two different classes.

3 a. Give a suitable example for default argument.

    b. Create a class named Employee with four data members (ID, name, position, and salary). Using member functions initialize the data members for 3 objects and display information of all three of them. Assume appropriate data types.

Group B

4.Write a program using function template that ask user to enter the 10 elements in the array of type int and float and display the five largest value in ascending order.

5. Write a program to overload binary '+' operator.

6. Define function prototype. How function overloading is achieved? Mention advantages of using inline function.

7. Define pure virtual function and abstract class. Write a program to demonstrate ambiguity in multiple inheritance.

8. Create a class student that stores name and roll. From this class, derive a class marks that stores marks for 3 subjects. Then from the class marks derive a class record which stores semester and average marks for 3 subjects. Create an object for class record and display name, roll, marks in 3 subjects, semester, and average marks for a student. Assume appropriate data types.

9. Write a program to demonstrate writing an object to a data file and reading it back.

10. Mention features of this pointer. Write a program to demonstrate use of constructor in derived class.

11. Short notes on 1. Namespaces 2. Exception handling 3. Basic functions of seekg(), seekp(), tellg(), tellp()

Set 21

Group A

1 a. Write a program to create a class named Employee_Info with data member Emp_Id and Emp_Name. Create another Class named Finance_Info from Employee_Info with data member Bas_sal and Ot_sal. Create an independent class Extra_allowances with data Member Tray_All, House_All and Dail_all. Now, derive another class named Total_Info from Finance_Info and Extra_allowances with data member Tot_sal. Make necessary function for the above and show the Gross Salary.

    b. Discuss function overloading with example.

2 a. What is constructor and what are the properties of constructor? Write a program showing the example of Parameterized constructor.

    b. In what circumstances we need to use Exception Handling Mechanism. Discuss with example.

3 a. List different types operators which cannot be overloaded? Write a program to read two strings and concatenate them showing the example of operator overloading.

    b. What are the different types of visibility modes used in Inheritance? Discuss.

Group B

4. What is a template and why do we use Template in OOP? WAP to swap to variables using Function Template.

5. What is inheritance? List different types of Inheritance supported in C++. Write an OOP showing multiple inheritance.

6. Write a program to create a file named "cdplayer.dat" and store cd_id, Nameofcd and price of N no. of cd player to the file and read the information from the file and display them.

7. What are the different types of type conversion possible in operator overloading? Write a program showing the example of basic class type conversion.

8. What is DMA in C++? Write a program showing the example of new and delete operator.

9. What is Virtual function? Write a program showing the example of virtual function.

10. What are the different ways of defining members of a class? Discuss with example. How Encapsulation is achieved in C++?

11. Short notes on 1. Early vs late binding 2. POP vs OOP 3. Namespaces

Set 22

Group A

1. List and explain different types of operators in C++. Explain function overloading with a suitable program.

2. What is constructor? List and explain the different types of constructors supported by C++ with examples. Explain destructor with an example.

3 a. What do you mean by class and object? Create a class named Employee with four data members (ID, name, position, and salary). Write a program with member functions: one that initializes necessary data members and another that displays employee's information.

    b. Explain inline function with example.

Group B

4. What do you mean by inheritance? Explain types of inheritance with example.

5. Write an object-oriented program to initialize an integer array of size 10 and find sum and average of array elements.

6. Write a program to add two strings "Hello" and "World" overloading binary '+' operator.

7. Write a program to demonstrate conversion from one class to another class.

8. What is container class? write a program using function template to find the largest number among given three numbers.

9. What is abstract base class? Explain virtual function and polymorphism with example.

10. Differentiate between public, protected and private class members with example.

11. Short notes on 1. 'this' operator 2. Class template 3. Encapsulation