How to Make a Roman Numerals Converter in VB Code

The Visual Basic language does not have an automatic Roman numerals converter, so you must manually set up a set of "switch" statements that determine the numeric value and change the numeric value to a Roman numeral string. You use this function to display numbers in Roman numeral format on a Web or desktop application.

Instructions

1. Open your Visual Studio software and open the Visual Basic project. Double-click the file you want to use to create the conversion function.

2. Create the string value that you use to contain the roman numeral value. The following code creates a VB.NET string:

   Dim roman As String

3. Set up the switch statement to go through a list of possible values and convert the number to the roman numeral. You must create a case for each number possibility you want to use. For instance, the following code sets up a switch statement for the numbers 1 to 3:

   Select Case numberInput
   Case 1
   roman = "I"
   Case 2
   roman = "II"
   Case 3
   roman = "III"
   End Select

   The "numberInput" variable is the input from your users. Replace this variable with the name of the variable you use to contain input from users.

4. Display the roman numeral conversion. The following code displays the converted number:

   WriteLine("Converted Number: " & roman)

References

• Rhonda Tipton's Web Log: Conditional Case Statements in .NET