Assume that s is a string variable that is supposed to contain a value to be converted to integer. Write a fragment of code that converts the value to integer variable and displays that value multiplied by 2. If the value cannot be converted, display the message ‘Invalid number’ instead.

LANGUAGE: Visual Basic

CHALLENGE:

Assume that s is a string variable that is supposed to contain a value to be converted to integer.
Write a fragment of code that converts the value to integer variable and displays that value multiplied by 2.
If the value cannot be converted, display the message ‘Invalid number’ instead.

SOLUTION:


Try
    MessageBox.Show(CInt(s) * 2)
Catch
    MessageBox.Show("Invalid number")
End Try