Today I am going to Show a Simple Calculator using VB.Net .

Write a program to develop a calculator using select case.

 *(Select case work Same as Switch case)

Module Module1

    Sub Main()

        Dim a, b, c, ch As Integer        // Declaration a,b,c,ch variable Integer type 

                  

        Console.WriteLine("Enter the two numbers")

        a = Integer.Parse(Console.ReadLine())      //Taking first number from user

        b = Integer.Parse(Console.ReadLine())     //Taking second number from user

        Console.WriteLine("CALCULATOR")                     /*        Showing output To User  

        Console.WriteLine("1.ADDITION")

        Console.WriteLine("2.SUBTRACTION")

        Console.WriteLine("3.MULTIPLICATION")

        Console.WriteLine("4.DIVISION")

        Console.WriteLine("Enter your choice(1-4)")                             */

      

        ch = Integer.Parse(Console.ReadLine())        //Taking value from user to select an option 

        Select Case ch                                                 //select case work same as Switch

            

            Case 1

                c = a + b

                Console.WriteLine("Addition of {0} and {1} is {2}", a, b, c)

            Case 2

                c = a - b

                Console.WriteLine("subtraction of {0} and {1} is {2}", a, b, c)

            Case 3

                c = a * b

                Console.WriteLine("Multiplication of {0} and {1} is {2}", a, b, c)

            Case 4

                Console.WriteLine("division of {0} and {1} is {2}", a, b, c)   /*{0},{1},{2} defines the                                                                                                                            position of variable here {0}                                                                                                                       points 'a' , {1} points 'b' and                                                                                                                                          {3} points 'c' */

            Case Else

                Console.WriteLine("INVALID CHOICE")

        End Select

        Console.Read()

    End Sub

End Module

**WHOLE PROGRAM IN VB.NET DOES'T CONTAIN TERMINATOR ";" 

Output