VB.NET Keywords

VB.NET Keywords
When we are thinking to create a variable, function, module, class name or any other objects assigners can't be used a Keyword in VB.NET programming language. Because Keyword is a reserved word with special meanings in the compiler, whose meaning cannot be changed.

What an actual Keyword is?
A Keyword is a predefined word for function, class name or any other objects which are in the compiler to identify and run the programming in VB.NET. So, because of this, a programmer can't be created a variable or anything else using Keywords to use in the program as I mentioned the above.

In This Tutorial:

• Keywords in VB.NET
• Explanations about Identifiers in VB.NET

Keywords in VB.NET
​Keywords are many in VB.NET programming language and all of them are in the table below.

Example:
When creating a variable or function in a program, you can't use anyone of those Keywords above in the table: Dim Stop as integer

Can create like this: Dim Stopp as Integer
So, it's easy to understand the difference between those are two above examples.
​
Explanations about Identifiers in VB.NET
The identifier is used to identify the name of function, class, variable or any other user-defined elements in the program. Probably an identifier can be the combination of letter, digit, and underscore. Even though, the first character of the identifier or variable name must start with alphabet letter or underscore (_) of any length.

When declare a variable should be followed its rules in VB.NET. There are various rules in VB.NET, as follows:

1. The first letter of a variable shouldn't start with number (digit).
2. The first character of an identifier must start with an alphabet or underscore.
3. A variable can't be in multiple separated words and should be single or continued words.
4. An identifier should not contain any reserved keyword and it should not more than 51 characters.
5. An identifier can contain two underscores but should not be consecutive.
6. It should not include any commas or white spaces in-between characters.

For Example:
Meaningful Variable Declaration:

• Dim Data_type_a as Integer : This is a valid variable
• Dim Add_operator as integer : This is a valid variable

Can't declare a variable like below:
​Dim String as String : This is an invalid variable
Dim Else as Integer : This is an invalid variable
Dim 43webs as String : This is an invalid variable

If you have any other questions regarding this tutorial, please state all your query through "Comments" section below.