Question

The Integer.TryParse method can be used to convert an amount read from a sequential access file to the Integer data type.

a. True
b. False

Answer 1

The statement is true: the Integer.TryParse method is used to attempt to convert a string to an integer, and it works with strings obtained from sequential access files. (option a is the correct answer)

Step-by-step explanation:

The Integer.TryParse method can indeed be used to convert a string to an Integer, and this is true even when the string is read from a sequential access file. To use the Integer.TryParse method, one must pass the string value, which is expected to contain the numeric representation, along with an integer variable that will be used to store the converted value if the conversion is successful.

This method returns a Boolean value indicating whether the conversion succeeded. If the string represents a valid integer, then the method will return true and the parsed integer will be stored in the provided integer variable.

Otherwise, it will return false, and the integer variable will remain unchanged.

Here is an example of how Integer.TryParse might be used:

Dim result As Integer
Dim success As Boolean = Integer.TryParse("123", result)
If success Then
' Conversion succeeded, and result now holds the integer value 123
Else
' Conversion failed
End If