C++ Answers

Create a class called InputData. It has two private data members data_a and data_b. Set the

values of these two data members by using two public functions get_a() and get_b(). Derive a class

called Arith_Unit from InputData. It contains the functions add(),sub(), mul(),div() to perform

arithmetic operations on data_a and data_b. Derive a class Logic_Unit from InputData. It

contains the functions and(), or() and xor() to perform logical operations on data_a and data_b.

Finally derive a class called ALUnit from Arith_Unit and Logic_Unit classes. It has to perform

arithmetic and logical operations according to the given codes. Choose code 0 to code 6 to perform

the said seven operations. Write sample program to test the ALU class.

Create two classes IntArray to store the set of integer numbers and FloatArray to store decimal

numbers. Add a member function read() for both classes for reading inputs. Create two objects ‘x’

for IntArray and ‘y’ for FloatArray. Read the inputs for x and y. Using a friend function maxmin(x,y),

display the maximum and minimum among the set of integers and decimal numbers.

Define a class Student with data members as rollno and name. Derive a class Fees from student

that has a data member fees and functions to submit fees and generate receipt. Derive another class

Result from Student that displays the marks and grade obtained by the student. Write a program that

extends the class Result so that the final result of the Student is evaluated based on the marks obtained

in tests, activities and sports.

Create a class called Employee with protected data members emp_id, name and designation. It

contains the member functions to get details of employee and display them. Derive two classes

Permanent and Contract from Employee class. Contract has data members num_hrs and

wages_per_hr. Permanent has basic, DA, TA and HRA. Get the necessary details using member

functions and display the employee details with their salary according to the given data.

Create a class named EB_amount. It has the data members units_used and bill. Use member

function to set unit_used. Upto 200 units 3 rupees per unit, 201 to 500, 4 rupees per and above 500

5.5 rupees per unit are allotted by EB. Calculate the bill amount and display the amount. Create

another class Salary with basic, DA and HRA. Set basic by a member function. 104 percent of basic

is assigned as DA and 10 percent is allotted as HRA. Display the total salary. Derive a class Budget

contains income, tuition_fee, house_rent, saving, grocery, eb_bill as data members. Set the values

and get the values of income and eb_bill from parent classes. Display the budget details.

Create a base class called Shape which has two double type values. Use member functions get()

and set() to get and set the values. Use a virtual function display_area() to display the area. Derive

two specific classes called Triangle and Rectangle from the base class Shape. Redefine

display_area() in the derived classes. Write a program to display the rectangle or triangle area.

Create a class Matrix to store a m x n matrix. Include necessary constructors and functions to

initialize and display the matrix. Using friend function, find the dot product of two input matrices.

Create a class Date whose object can store a day, month and year. Include the necessary

constructors to initialize the objects and function to display the date in ‘dd/mm/yyyy’ format.

Define a non-member function findAge(Date dob, Date today) which should return the calculated

age from the input dates ‘dob’ and ‘today’. Set this function as friend to Date class. Write a main

function to read the today’s date and date of birth of a person from the user and display the age

of that person by calling the proper function.

Create a class called Transmitter. It has three unsigned int private data members: pay_load,

parity and data_packet; It has one function called parity_bit(). It calculates parity bit by XORing

all pay_load bits and assign the value to parity. By using function get pay_load(), pay_load is got.

data_packet is calculated by multiplying parity_bit with 32768 and add the product with (pay_load

– 32768). Create another class called Receiver. It has unsigned int private data members Rx_Pkt

, Rx_Data and E_Flag. Rx_Data is got from Rx_Data as given below. First E_Flag is calculated

from Rx_Pkt by XORing all bits. If E_Flag is zero, then Rx_Data = Rx_Pkt – 32768, Else a

message should warn about corrupted packet. Derive a class called Tranceiver from the above two

classes and check the functionalities. Use any other functions if needed.

Develop a program that uses a function called large_is_zero(). This function takes

two float arguments as pass by reference and then this function sets the large number to zero.