VB.NET Abs Example – Code Sample Syntax
VB.NET Abs Example – Code Sample Syntax
Purpose: – Illustrates using VB.NET Abs Code Example.
Purpose:
Returns the absolute value for the data type that was passed in.
Syntax:
Abs(expression)
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 |
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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 |
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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:
- Install Visual Basic (Express or Standard Edition)
- Install SQL Server Express
- Download Northwind and pubs Database
- Attach Northwind Database to Databases in Sql Express
- 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:
- Use Visual Basic 2010 Express or Standard Edition
- Create new project;
- Click File/New Project
- Select Console Application Template
- Select Visual Basic for Language
- name of project could be VBNET_Syntax.
- Add New folder named “Functions”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: Functions
- Add New subfolder named “MathFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: MathFunctions
- Add Class Named clsAbs to MathFunctions folder
- Right-click MathFunctions folder;
- add new item;
- Select class
- Class name could be clsAbs
- Click on Visual Basic in code in step 1 above to copy code into clsAbs.vb
- Click on Visual Basic in code in step 2 above to copy code into Module1.vb
- Click green arrow or press F5 to run program