Question

How would I generate a string of asterisks of specified length (so I could use it alongside the .Length property of an array item)?

Answer 1

You can do that using the String(Char, Int32) constructor overload of System.String.

Initializes a new instance of the String class to the value indicated
by a specified Unicode character repeated a specified number of times.

You can use the constructor like this:

Dim mystr As String = New String("*"c, array.Length)

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There are many more constructor overloads for System.String.