SAMPLE PROGRAMS IN C#

1.Hello World -- Your First Program

To create and run a console application

·       Start Visual Studio.

·       On the File menu, point to New, and then click Project.

·       In the Templates Categories pane, expand Visual C#, and then click Windows.

·       In the Templates pane, click Console Application.

·       Type a name for your project in the Name field.

·       Click OK.

·       The new project appears in Solution Explorer.

·       If Program.cs is not open in the Code Editor, right-click Program.cs in Solution Explorer and then click View Code.

·       Replace the contents of Program.cs with the following code.

// A Hello World! program in C#.

using System;

namespace HelloWorld

{

class Hello

{

static void Main()

{

Console.WriteLine("Hello World!");

// Keep the console window open in debug mode.

Console.WriteLine("Press any key to exit.");

Console.ReadKey();

}

}

}

·       Press F5 to run the project. A Command Prompt window appears that contains the line Hello World!

2. Fibonacci series – A sample program in C#

Sample Code:

using System;

using System.Collections.Generic;

using System.Text;

namespace codeforfibonacciseries

{

    class Program

  {

      static void Main(string[] args)

        {

            int i = 0;

            int j = 1;

            int k = 1;

            int n = 0;

            int m = 0;

            m = Console.Read();

            m++;

            Console.WriteLine("The Fibonacci series values are:");

            Console.Write(" {0}, {1}", i,j);

            for (n = 0; n <= m; n++)

            {

                k = i +j;

                i = j;

                j = k;

                Console.Write (" {0} ", k);

        }

}

}

3. Even or odd – A sample program in C#

Sample Code:

using System;

using System.Collections.Generic;

using System.Text;

namespace codeforevenorodd

{

 class Program

{

 static void Main(string[] args)

 { string g;

 int j = 0;

 int i;

Console.WriteLine(" Enter the value: ");

g = Console.ReadLine();

i = Convert.ToInt32(g);

j = (i % 2);

if(j == 0)

{

Console.WriteLine("The given value is even ");

}

else

{

Console.WriteLine("The given value is odd  ");

}

}

}

}

4. Palindrome – A sample program in C#

Sample Code:

using System;

using System.Collections.Generic;

using System.Text;

namespace codeforpalindrome

{

class Program

{

static void Main(string[] args)

{string s1;

int j = 0;

int i = 0;

Console.WriteLine(" Enter the value ");

s1 = Console.ReadLine();

j = s1.Length;

while (i != (j - 1)){

if (s1[i] == s1[j - 1])

{

i++;

j = j - 1;

}

else

{

Console.WriteLine(" The given value is not a palindrome");

break;

}

}

if (i == (j-1))

{

Console.WriteLine("The given value is a plaindrome")

}

}

}