C# Answers

Write a program to define a two dimensional array of numbers to store 5 rows and 6 columns. 

Write a code to accept the data, assign it in array, and print the data entered by the user. 

1. Create an application named Numbers whose main() method holds two integer variables. Assign

values to the variables. Pass both variables to methods named sum () and difference(). Create the

methods sum() and difference(); they compute the sum of and difference between the values of two

arguments, respectively. Each method should perform the appropriate computation and display the

results. Save the application as Numbers.cs

Write a program that does the following for 15

students:

 Reads in 3 marks for each student (you

need to ensure that only valid marks

between 0 and 100 are processed) – your

prompt message to the user should

indicate which number is being requested

(see example image of output)

 Calculates and displays the highest mark

for each student.

Finds and displays the highest mark in the class.

(Note: The example output only shows data for 5

students, but your program must work for 15

students).

Write a program which requests a number between

1 and 50 from the user. It must repeatedly ask the

user for a number until a valid number is entered.

After receiving a valid number, the program must

display all the even numbers smaller than that number. (If the user enters 11, the numbers 2, 4, 6,

8, 10 must be displayed).

Write a program, using nested loops, to display the following:

7 6 5 4 3 2 1

7 6 5 4 3 2

7 6 5 4 3

7 6 5 4

7 6 5

7 6

7

Write a program, using nested loops, to display the following:

1

12

123

1234

12345

Calculate total stock value of the stock available in a furniture shop.

This program simulate the stock management of a Furniture Shop. This shop deals with only two type of Furnitures BookShelf and DiningTable only. The program should accept details any 5 furnitures(each can be either BookShelf or DiningTable), the program should show a menu that allow the user to select choice of Furniture. After accepting the required no of Furniture details program will show accepted details and TotalCost of Accepted Stock

This exercise contains a base class named Furniture to hold the common properties of all type of Furnitures, and BookShelf and DiningTable class as child class with additional properties relevant to child classes. Program class has below functions:

ddToStock(Furniture []) : int
    
 +TotalStockValue(Furniture []) : double
     
  +ShowStockDetails(Furniture []) : int
     
+Furniture : class
+ BookShelf : class
+ DiningTable : class

Create a program using C# that implements the stream ciphers Cryptographic method . A stream cipher method inputs digits, bits, or characters and encrypts the stream of data. The onetime pad is an example of a stream cipher.

In this formative you have been requested to create an application that will work as the One-time pad (OTP), also called Vernam-cipher or the perfect cipher. This is a crypto algorithm where plaintext is combined with a random key and generate a ciphertext

Calculate total stock value of the stock available in a furniture shop.

This program simulate the stock management of a Furniture Shop. This shop deals with only two type of Furnitures BookShelf and DiningTable only. The program should accept details any 5 furnitures(each can be either BookShelf or DiningTable), the program should show a menu that allow the user to select choice of Furniture. After accepting the required no of Furniture details program will show accepted details and TotalCost of Accepted Stock

This exercise contains a base class named Furniture to hold the common properties of all type of Furnitures, and BookShelf and DiningTable class as child class with additional properties relevant to child classes. Program class has below functions:

 +AddToStock(Furniture []) : int
    
 +TotalStockValue(Furniture []) : double
     
  +ShowStockDetails(Furniture []) : int
     

The program should also contain definitions for class types as suggested below:

  +Furniture : class
    

  + BookShelf : class
    
  + DiningTable : class