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Data Types in VB.NET

· 2 min read
Kaustubh Kulkarni

Declaration of Data type​

To declare Datatype, we use following syntax, For example

file.vb
Dim str As String

Now let us see Data types in VB.NET

Data Types in VB.NET​

What are the data types available in VB?

String​

String Data types used to Save words in varible Like abc', Its size depends on platform implementation. example

file.vb
Dim str As String= "PQR"

Boolean​

Boolean is used to store values like true or false, You can also use 1 for true and 0 for false.

file.vb
Dim flag As Boolean= false

Integer​

Integer data type is used to store numbers between -2,147,483,648 and 2,147,483,647 (signed), Size of Integer variable is 4 bytes

file.vb
Dim a As Integer=55

Byte​

Byte data type is used for 0 to 255 (unsigned), it takes 1 byte of storage.

file.vb
Dim a As Byte=0

Char​

Char is used for defining single character

file.vb
Dim c As Char = "a"

Date​

As name suggest date is used to save Date values , it's size is 8 bytes.

file.vb
Dim dt As Date = Today

Single​

single data type size is 4 bytes. 1.401298E-45 to 3.4028235E+38 for positive values and -3.4028235E+38 to -1.401298E-45 for negative values

file.vb
Dim r As Single = 2

Long​

Long data type is used to store 8 bytes data types

file.vb
Dim d as Long = 2

Double​

Double used to store decimal values, size is 8 bytes

file.vb
Dim dbl as Double =3.22

These are most commonly used data types in Visual Basic .NET

How do you declare in VB?​

Data Types in VB.NET

file.vb
Public Class Form1
 Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
 Dim str As String = "PQR"
 Dim flag As Boolean = False
 Dim a As Integer = 55
 Dim b As Byte = 0
 Dim c As Char = "a"
 Dim dt As Date = Today
 Dim r As Single = 2
 End Sub
End Class

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