VB.NET Abs Example – Code Sample Syntax

Posted by on Saturday, April 30, 2011 · Leave a Comment 

VB.NET Abs Example – Code Sample Syntax

Purpose: – Illustrates using .

View Other VB.NET Math Function Source Code Examples

Purpose:
Returns the absolute value for the data type that was passed in.

Syntax:
Abs(expression)

Parameters Description
expression 1. decimal – returns decimal number
2. double – returns double-percision floating point number
3. int16 – returns 16-bit integer
4. int32 – returns 32-bit integer
5. int64 – returns 64-bit integer
6. sbyte – returns 8-bit signed integer
7. single – returns single-percision floating point number

Result Data Type Description
Depends on input 1. decimal – when input is decimal
2. double – returns double-percision floating point number
3. int16 – returns 16-bit integer
4. int32 – returns 32-bit integer
5. int64 – returns 64-bit integer
6. sbyte – returns 8-bit signed integer
7. single – returns single-percision floating point number

Step 1: Click Visual Basic to Cut-n-paste code into clsAbs.vb

Imports System.Math
Public Class clsAbs
 
    Public Sub Main()
 
 
        '********************************************************************************
        ' Purpose: Returns the absolute value for the data type that was passed in.
        ' 
        ' Range: Any positive or negative numbers
        ' 1. decimal - returns decimal 
        ' 2. double - returns double-percision floating point number 
        ' 3. int16 - returns 16-bit integer 
        ' 4. int32 - returns 32-bit integer 
        ' 5. int64 - returns 64-bit integer 
        ' 6. sbyte - returns 8-bit signed integer 
        ' 7. single - returns single-percision floating point number
        ' 
        ' Syntax: 	Abs(expression)
        '  
        ' Parameter1: expression - 1. decimal - returns decimal number
        ' 2. double - returns double-percision floating point number 
        ' 3. int16 - returns 16-bit integer 
        ' 4. int32 - returns 32-bit integer 
        ' 5. int64 - returns 64-bit integer 
        ' 6. sbyte - returns 8-bit signed integer 
        ' 7. single - returns single-percision floating point number
        '
        ' Result: Depends on input -  1. decimal - when input is decimal
        ' 2. double - returns double-percision floating point number 
        ' 3. int16 - returns 16-bit integer 
        ' 4. int32 - returns 32-bit integer 
        ' 5. int64 - returns 64-bit integer 
        ' 6. sbyte - returns 8-bit signed integer 
        ' 7. single - returns single-percision floating point number
        '
        '********************************************************************************
        ' This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Abs(expression)")
        Dim decNumber As Decimal = 1.33
 
        Console.WriteLine(Abs(decNumber)) ' Returns 1.33
 
        'write blank line to make output easier to read
        Console.WriteLine()
 
        Dim douNumber As Double = -3.4
        Console.WriteLine("Example #2: 	Abs(expression)")
 
        Console.WriteLine(Abs(douNumber)) ' Returns 3.4
        'write blank line to make output easier to read
        Console.WriteLine()
 
        Console.WriteLine("Example #3: 	Abs(expression)")
 
        Dim Integer3 As Integer = Abs(-0)
 
        Console.WriteLine(Abs(-0)) ' Returns 0
 
        'Prevent console from closing before you press enter
        Console.ReadLine()
 
    End Sub
 
End Class

Step 2: Click Visual Basic to Cut-n-paste code into Module1.vb

Module Module1
 
    Sub Main()
 
 
        Dim myclsAbs As New clsAbs
        myclsAbs.Main()
 
 
 
    End Sub
 
End Module

Prerequistes:

  1. Install Visual Basic (Express or Standard Edition)
  2. Install SQL Server Express
  3. Download Northwind and pubs Database
  4. Attach Northwind Database to Databases in Sql Express
  5. Attach pubs Database to Databases in Sql Express

Notes:

  • Console Application is used to simplify things, but Windows Forms or Web Forms could also be used
  • You can build a library of syntax examples by using same project over and over and just commenting out what you do not want to execute in Module1.vb

Instructions:
VB.NET Syntax Functions Abs

  1. Use Visual Basic 2010 Express or Standard Edition
  2. Create new project;
    • Click File/New Project
    • Select Console Application Template
    • Select Visual Basic for Language
    • name of project could be VBNET_Syntax.
  3. Add New folder named “Functions”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: Functions
  4. Add New subfolder named “MathFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: MathFunctions
  5. Add Class Named clsAbs to MathFunctions folder
    • Right-click MathFunctions folder;
    • add new item;
    • Select class
    • Class name could be clsAbs
  6. Click on Visual Basic in code in step 1 above to copy code into clsAbs.vb
  7. Click on Visual Basic in code in step 2 above to copy code into Module1.vb
  8. Click green arrow or press F5 to run program

Filed under Code Samples · Tagged with , , , , ,