Programming & Computer Science Answers

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 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 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

 Write a program for a publishing company that markets both printed books and audio visual lectures stored on CDs. Write a class Publication thatstores title and price. Derive a class book which has an additional member as no_pages and a class Lecture with member play_time. 

 Write a program that has a class Train with data members seats_first_class, seats_second_class and seats_ac_2tier and member functions to set and display data. Derive a class Reservation that has data members booked_first_class, booked_second_class and booked_ac_2tier and functions to book and cancel tickets and display status.

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.

Define a class Employee with data members as empno, name and designation. Derive a class Qualification from Employee that has data members UG, PG and experience. Create another class Salary which is derived from both these classes to display the details of the employee and compute their increments based on their experience and qualifications.

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.