Calculations, Variables and Constants - Please help

[Mirasol]

I am just starting Visual Basics and I was fine until I had to learn variables and calculations. I just received an F on my last project and was wondering how in the world I can go about learning variables and constants and declaration. How do they relate? On the following:

' Declare a named constant.
Const DISCOUNT_RATE_Decimal As Decimal = .15D

What does .15D stand for?:sad:

[iamthwee]

http://visualbasic.about.com/od/usingvbnet/a/datatypes.htm

[waynespangler]

What does .15D stand for?:sad:

D is decimal
F is float
S is short
L is long
etc.

[Dukane]

The D at the end of the line is simply a notation to say, "this is a decimal value"