Visual Basic, Adding Values To Empty Char Array Elements - arrays

Question

I'm having trouble filling up empty array elements in a char array.
I have an inputArray that will store all the characters that I type for myInput into an array. I then created a charArray that will take the characters from inputArray and then if it it comes across nothing in the array I want to add -1 to signal empty locations in my charArray. I haven't been able to do that. I type "Hello", it will output back to me
H
E
L
L
O
Space
Space
Space
Space
And So On, until I reach the end of that array.
*"Space" is for visual aid of output
I'm lost. I want to be able to filter out the "-1" and than count for the number of underscores I need to make up the word, like "Hello" would be _ _ _ _ _ (leaving out elements with "-1" or nothing inside of it.)
Module GuessingGame
Sub Main()
Dim myInput As String.
Dim inputArray(11) As Char
Dim charArray(11) As Char
Dim myLetter As String
Dim attempts As Integer = 0
Dim incorrectAttempts As Integer = 0
Dim remainingAttempts As Integer = 0
myInput = InputBox$("Please enter a word or phrase: ")
inputArray = myInput.ToCharArray()
While inputArray.Length > 12
System.Console.WriteLine("Error: The word or phrase needs to be 12 characters or less")
myInput = InputBox$("Please enter a word or phrase: ")
inputArray = myInput.ToCharArray()
End While
For i = 0 to inputArray.length - 1
If IsNothing(inputArray(i)) Then
charArray(i) = "-1"
Else
charArray(i) = inputArray(i)
End If
Next
Console.Clear()
For Each element In charArray
System.Console.WriteLine(element)
Next element
For i = 0 to inputArray.length - 1
remainingAttempts = remainingAttempts + 1
Next
remainingAttempts = remainingAttempts - 1
System.Console.WriteLine("Guessing Game Display")
System.Console.WriteLine("---------------------")
System.Console.WriteLine("Number of Remaining Attempts: " & remainingAttempts)
System.Console.WriteLine("Number of Incorrect Attempts: " & incorrectAttempts)
System.Console.WriteLine("Number of Attempts: " & attempts)
System.Console.WriteLine("Guess a Character? ")
myLetter = InputBox$("Please enter a character: ")
End Sub
End Module

Answer 1

I am not 100% but I am pretty sure the IsNothing is checking to see if there is a value at all.. Since you are automatically assigning the array to a size of 11 anything after the H E L L O is going to be set, but either "" or " " just an empty space. So try doing this
If inputArray(i) == "" Then
charArray(i) = "-1"
Else
charArray(i) = inputArray(i)
End If

Answer 2

I think your code work fine it must print -1 when there is space in integerArray. But on the code below u must modify it:
While inputArray.Length > 12
System.Console.WriteLine("Error: The word or phrase needs to be 12 characters or less")
myInput = InputBox$("Please enter a word or phrase: ")
'**/*it is better to remove these two code and replace it by goto above*/**
inputArray = myInput.ToCharArray()
End While

Answer 3

I was able to achieve what I wanted by first creating the char array, which would have the input of the word to guess. Then make string arrays, one that had the values from the char array and one that I would use for the guess array to compare off the first string array.
This was the work around to this problem.