Size of array in Visual Basic?

Question

I\'ve tried this code in VB:

Dim a(1) As Byte
Console.WriteLine(a.Length)

The output is \"2\". Anyone any idea why?

Answer 1

The previous answers each have pieces of the correct answer, but not the full correct answer. When you declare an array (Like with your code: Dim a(1) As Byte) the number you put in the array declaration (in this case, 1) is NOT a declaration of how many entries in the array, it is a declaration of the upper boundary of the array.

So, in your declaration, you're creating an array with 2 entries: a(0) and a(1)