TABLE OF CONTENTS 1 + N + 3 = 7
What is N? N is a variable. In the above equation it represents a number. If we were to solve for N we would get a value of 3.
"Learning MicroStation VBA " & N & " Easy."
What is N? N is a variable. In the above equation it represents a string of characters.
What string of characters does it represent? "IS".
A variable is a name that represents a value or an object. The examples above show variables with a name of N. In one instance the variable holds a numeric value. In the other it holds a string of characters. In general, we know in advance what type of value or object a variable will be representing. Since we know this, we specify what type of variable we will use by declaring it.
Dim N as IntegerN = 7 - 3 - 1
Here, we declare the variable N as an integer. This means it will be a whole number between -32,768 and 32,767.
Dim N As StringN = "IS"MsgBox "Learning MicroStation VBA " & N & " Easy."
Here we declare N as a string. A string is a group of characters. After a variable is assigned a value, you can use it in the place of a number, text, or some other type of value or object.
We will use variables extensively throughout this book. Let's examine some of the more common types...
