Programming & Computer Science Answers

A company wants to transmit data over the telephone, but is concerned that its phones could

be tapped. All of the data are transmitted as two-digit integers. The company has asked you

to write a program that encrypts the data so that it can be transmitted more securely. Your

program should read a two-digit integer and encrypt it as follows: Replace each digit by

(the digit plus 7) modulus 10). Then, swap the first digit with the second and print out the

encrypted integer

4. Develop a simple application using functions to calculate the area of the following shapes: Square, Rectangle and Triangle. The user should be able to perform any of the calculation and also press a key to terminate the program

6. A company wants to transmit data over the telephone, but is concerned that its phones could be tapped. All of the data are transmitted as two-digit integers. The company has asked you to write a program that encrypts the data so that it can be transmitted more securely. Your program should read a two-digit integer and encrypt it as follows: Replace each digit by (the digit plus 7) modulus 10). Then, swap the first digit with the second and print out the encrypted integer.

Write a program that computes the total ticket sales of a concert . there are three types of seating’s : A, B, and C. the program accepts the number of tickets sold and the price of a ticket for each of the three types of seats. The total sales are computed as

totalSales = numberofA_Seats * priceperA_Seat +

numberofB_Seats * priceperB_Seat +

numberofC_Seats * priceperC_Seat ;

Write this program, using only one class, the main class of the program

Write a program that computes the area of a circular region (the shaded area in the diagram) given the radius of the inner and the outer circles, ri and ro, respectively.










We compute the area of the circular region by subtracting the area of the inner circle from the area of the outer circle.


1. Develop a simple application using functions to calculate the area of the following shapes: Square, Rectangle and Triangle. The user should be able to perform any of the calculation and also press a key to terminate the program.




Write a program that displays the recommended weight in kilograms, given the user’s age and height in centimeters. The formula for calculating the recommended weight is

Recommended = (height – 100 + age %10) *0.90

Write a program that computes the total ticket sales of a concert . there are three types of seating’s : A, B, and C. the program accepts the number of tickets sold and the price of a ticket for each of the three types of seats. The total sales are computed as

totalSales = numberofA_Seats * priceperA_Seat +

numberofB_Seats * priceperB_Seat +

numberofC_Seats * priceperC_Seat ;

Write this program, using only one class, and the main function of the program.

OpenGL is a cross platform API for rendering 2D & 3D graphics. How the process of image scanning to display surface from the frame buffer is performed. Discuss with diagram?

3. Write a program that computes the area of a circular region (the shaded area in the diagram) given the radius of the inner and the outer circles, ri and ro, respectively.










We compute the area of the circular region by subtracting the area of the inner circle from the area of the outer circle.

1. One large chemical company pays its salespeople on a commission basis. The salespeople each receive $200 per week plus 9 percent of their gross sales for that week. For example, a salesperson who sells $5000 worth of chemicals in a week receives $200 plus 9 percent of $5000, or a total of $650. Develop a C++ program inputs each salesperson's gross sales for last week and calculates and displays that salesperson's earnings. Process one salesperson's figures at a time

2. Write a program that computes the total ticket sales of a concert . there are three types of seating’s : A, B, and C. the program accepts the number of tickets sold and the price of a ticket for each of the three types of seats. The total sales are computed as

totalSales = numberofA_Seats * priceperA_Seat +

numberofB_Seats * priceperB_Seat +

numberofC_Seats * priceperC_Seat ;

Write this program, using only one class, the main class of the program