Faculty of Computer StudiesM107

Faculty of Computer Studies
Course Code:  M107
Course Title: Introduction to C# Programming
Fall 2017Faculty of Computer Studies- 2018 -Tutor Marked Assignment
Cut-Off Date:   Total Marks: 80
Contents
Part I: Theoretical Questions [20 Marks]
Part II: Output and Debugging Questions [20 Marks]
Part III: Problem Solving Questions [40 Marks]
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Part I: Theoretical Questions (4 marks each) [20 Marks]

Convert the following Algebraic expression to C# equivalent?

p= m+ n + r + s+ y
        6

y= ax2 + bx +  c
   


Briefly explain the value data types and reference data types in C#.



Differentiate between while loop and do-while loop with the help of examples.



What is an exception? How exceptions are handled in C#? Briefly explain.


How multiple inheritance is implemented in C#? Demonstrate with the help of an example.



Part II: Output and Debugging Questions (10 marks each) [20 Marks]

Note: Provide a copy of the code and screen shot for the output in the solutions’

What is the output of the following program? [10 Marks]

namespace ConsoleApplication1
{
   class Program
   {
       static void Main(string[] args)
       {
           int p;
           int[] A = {2,5,6,1,8,4,9,1,3,0};
           for (p = 0; p < 10; ++p)
           {
              if(A[p]%2 == 1)
                   Console.WriteLine(A[p]);
             
           } Console.ReadLine();

       }
   }
}


What is the output of the following program? [6 Marks]

class Program
   {
       static void method1(ref int m, int n)
       {
           m = m + 10;
           n = n + 20;
       }

       static void Main(string[] args)
       {
           int x = 100;
           int y = 50;
           method1(ref x, y);
           Console.WriteLine("x =" + x);
           Console.WriteLine("y =" + y);

           Console.ReadLine();


       }
   }

Identify the errors in the following C# program. Write the correct program. [4 marks]

   class Program
   {
       static Main(string[] args)
       {
           {
               / This is a comment
               int m = 12
            Console.WriteLine("The value of m = ",);
           }
           Console.ReadLine();
       }
   }








Part III- Problem Solving Questions [40 Marks]

Note: Provide a copy of the code and screen shot for the output in the solutions’

Write a C# program to print the factorial of a number input by the user.  Hint: Factorial of number is the product of all positive integers less than or equal to that number. e.g. 5!= 5 X 4  X 3 X 2 X 1=120           [15 marks]
Sample I/O




Write a C# application that asks the user to input the required data to implement the four methods below:
(Use Method Overloading to write the methods)
Method Vol that takes as input, double values ‘r’ (radius) and ‘h’ (height), calculates the volume of a cone, and displays it. [Volume = 1/3 πr^2 h]

Method Vol that takes as input, double values ‘B’ (base area) and ‘h’ (height), calculates the volume of a pyramid, and displays it. [Volume = 1/3 Bh]

Method Vol that takes as input, a double value ‘r’ (radius), calculates the volume of a sphere, and displays it. [Volume = 4/3 πr^3]
[15 Marks]
Sample I/O





Using loops, write a C# program to print the following pattern. [10 Marks]