Variables in VB.NET, vb.net, variables
In this article you will learn what is variables in VB.NET and how to declare and initialization variables.
In any programming language, variable store value during a program's execution.
I am writing a program that converts amounts between different currencies.
Example: In this example calculate and display the discounted price for the amount of 50000.
Dim amount As Single
Dim discount As Single
Dim discamount As Single
amount = 50000
discount = 0.5
discamount = amount * (1 - discount)
MsgBox("your price is $" & discamount)
Note: Single is a numeric data type, it can store both integer and non- integer values.
You can declare integer variables:
Dim width As Integer
You can declare multiple variables of the same type having to repeat each variable's type:
In this statement will create three integer variables:
Dim width, depth, height, as Integer
In this statement will create two integer and two Double variables:
Dim width, height As Integer, area, volume As Double
To declare a variable, use the Dim statement followed by the variable's name, the AS keyword, and its type, like:
Dim height As Integer
Dim greetings As String
When declare variables, here are steps to use:
Start with a letter.
you can use only special character that can appear in the variable's name is the underscore character.
Limits of the characters is 255.
Must be unique within the scope.
Variable names in VB.NET is case-insensitive.
we can initialize variables in the same line that declare them.
Here declares an integer variables and initializes in to 2,450:
Dim instance as Interger = 2450
In this article you learned what is variables in VB.NET and how to declare and initialization variables. In next article you will learn type of variables.