C#- Programming Guide | Starting Phase Learning(12)

Starting Phase comes to an end.

Before moving to the next phase, answer yourself to these to make sure you can move on to the next phase (Beginner Phase ) .

Questions on the dealt topics faced in the first phase of learning.
Starting phase :

  1. What are the compilers in C#?
  2. What is an assembly in C#?
  3. What is a class library in C# , What is the use of Class library in C#.?
  4. What is a namespace in C# , name few namespaces used in C#?
  5. What are the differences between WriteLine() and Write()?
  6. What are the comments and region in C#? How you define and what are i=the types of comment used.
  7. Do comments affect your code and what are its uses?
  8. What are data types in C# , list few of them?
  9. Type Conversion/ Type Casting in C#?
  10. What are different types of Operators in C#?
  11. What are unary operators?
  12. What are the conditional statement?
  13. Explain looping, give an example to illustrate the difference between for and while loop in C#?
  14. Ternary operator syntax in C#.
  15. Difference between C and C#?

Some sample program to practice;

1.Write a program to print like below ;

Name : Your lovely name
DateOfBirth: 27/01//1993
Address: Singapore
Mobile No: 897xxxxxxxxxxx
Email: admin@xxxxxx.com

2.Write a program to print the maximum of 3 numbers i.e 9 , 7 , 3 without using looping
3.Write a program toprint sum of 10 numbers;
4.Write a program to print the maximum of n numbers;
5.Write a program to operate switch case statement
6.Write a program to find out the prime numbers among 1 to user choice(n)
7.Write a program to find out the leap years from 1900 to today’s date
8.Write a program to count vowels in a given strings.
9.Write a program to check given strings are equal or not .
10.Write a program to input weekday number and print the weekday
11.Write a program to design a simple calculator using if else if statements
12.Write a program to design a simple calculator using switch case statement
case 1: Addition’
case 2 : Subtraction
case 3 : Multiplication
case 4 ; Division
default: print “wrong choice”

Sample example :

 namespace TenOClocks
     public class Program
         //To calculate interest and ampount in C#
         static void Main(string[] args)
             Console.WriteLine("Lets calculate Interet and Amount for certain principle , rate and time");//Printing the line
             Console.WriteLine("Enter the principle to calculate the intrest");//Printing the line
             string principle = Console.ReadLine();//user input for teh principle
             Console.WriteLine("Enter the rate of intererst");
             string rate = Console.ReadLine();//user input for rate of interest
             Console.WriteLine("Enter the time in years");
             string time = Console.ReadLine();//user input for time
             float p = Convert.ToInt16(principle);//Type casting
             float r = Convert.ToInt16(rate);//Type casting 
             float t = Convert.ToInt16(time);//Type casting
             Console.WriteLine("Would you like to calculate simple Interst?");
             for(int i = 0; i<=25; i++)
             {                              //For loop to print ****            {
       Console.WriteLine("Select y for yes and n for no");
        string key = Console.ReadLine();//user input for yes or no
        key = key.ToLower();
        switch (key)//switch operation
            case "y":
                if (p > 0 && r > 0 && t > 0)//if with logical operators
                    float interest = (p * r * t) / 100;//calculating principle
                    Console.WriteLine("The calculated interest is" + interest);
            case "n":
                float amount = p + ((p * r * t) / 100);//calculating amount
                Console.WriteLine("The calculated amount is" + amount);
                Console.WriteLine("You have entered a wrong choice");//printing default satatement




Lets calculate Interet and Amount for certain principle , rate and time
Enter the principle to calculate the intrest
Enter the rate of intererst
Enter the time in years
Would you like to calculate simple Interst?
Select y for yes and n for no
The calculated interest is200

** This is the end of the starting phase.You are ready to move on for the beginner phase where we will concentrate towards below topics.

  • Some more data types
  • Boxing and unboxing
  • Strings, Arrays
  • Standard loopings
  • Standard conditional statements
  • Functions
  • Simple Class and Object


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