VB.NET Console program quickly get terminated

Question

I'm pretty new in the environment of VB.NET that uses only consoles. I have a problem regarding my program, the console get quickly terminated. How can I my console from doing that? Thanks.

heres my code:

Module Module1
 Dim num1 As Integer = 0
 Dim num2 As Integer = 0
 Dim ans As Decimal = 0
 Dim choice As String
 Sub Main()
 Console.WriteLine("First Number: ")
 num1 = Console.ReadLine
 Console.WriteLine("Second Number: ")
 num2 = Console.ReadLine
 Console.WriteLine("[A] Addition")
 Console.WriteLine("[S] Subtraction")
 Console.WriteLine("[M] Multiplication")
 Console.WriteLine("[D] Division")
 Console.WriteLine("Enter your choice: ")
 choice = Console.ReadLine
 If (choice.ToUpper() = "A") Then
 ans = num1 + num2
 Console.WriteLine(ans.ToString)
 ElseIf (choice.ToUpper() = "S") Then
 ans = num1 - num2
 Console.WriteLine(ans.ToString)
 ElseIf (choice.ToUpper() = "M") Then
 ans = num1 * num2
 Console.WriteLine(ans.ToString)
 ElseIf (choice.ToUpper() = "D") Then
 ans = num1 / num2
 Console.WriteLine(ans.ToString)
 End If
 End Sub
End Module

• 03Usr: Insert Console.ReadKey() at the end just before the End Sub line.
• Rowland Shaw: At what point in your code does it get terminated? What does the debugger tell you?
• Steve: Please search how to use Option Strict On. Executing mathematical operations with strings is a really bad thing
• akoDwin: Console.ReadKey() pretty works. :) thanks. Even I said im new in the VB.NET environment, people keeps downgrading my question. :/
• Rowland Shaw: @akoDwin your question may have been downvoted, as you didn't explain how the behaviour differed from what you expected, so not even "it quits immediately after printing the answer" - similarly, there's no demonstration of what you've tried to try and resolve the issue yourself

Answer 1

Console.ReadKey() should do what you are asking

put it before End Sub

refer here

Obtains the next character or function key pressed by the user. The pressed key is displayed in the console window.

Answer 2

The console program has reached the end of its routine causing it to terminate. You need to put a Console.ReadLine or Console.ReadKey in the main method. This will wait for user input.

I'll usually do something like this

Sub Main()
 Console.WriteLine("Press any key to exit")
 Console.ReadKey()
 Console.WriteLine("Press enter to exit")
 Console.ReadLine()
End Sub

Answer 3

This is normally only an issue when debugging, so I add:

If Debugger.IsAttached Then _
 Console.ReadLine()

at the end of my console program Main routines.