VB.NET Sign Example – Code Sample Syntax
VB.NET Sign Example – Code Sample Syntax
Purpose: – Illustrates using VB.NET Sign Code Example.
Purpose:
Returns an integer indicating the sign of the
input parameter. The result is -1 if the input
parameter is less than one; 0 if the input is
zero; and 1 if the input is > 0
Syntax:
1. Sign(decimal)
2. Sign(double)
3. Sign(int16)
4. Sign(int32)
5. Sign(int64)
6. Sign(SByte)
7. Sign(Single)
1. Sign(decimal)
2. Sign(double)
3. Sign(int16)
4. Sign(int32)
5. Sign(int64)
6. Sign(SByte)
7. Sign(Single)
Parameters | Description | decimal | Any valid System.Decimal data type number 2. double – any valid System.Double data type. 3. int16 – any valid System.Int16 data type. 4. int32 – any valid System.Int32 data type. 5. int64 – any valid System.Int64 data type. 6. SByte – any valid 8-bit SByte 7. Single – any valid single floating-point 32-bit number. |
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Result Data Type | Description | Int32 | Returns an integer indicating the sign of the input parameter. The result is -1 if the input parameter is less than one; 0 if the input is zero; and 1 if the input is > 0 |
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Step 1: Click Visual Basic to Cut-n-paste code into clsSign.vb
Imports System.Math Public Class clsSign Public Sub Main() '******************************************************************************** ' Purpose: Returns an integer indicating the sign of the ' input parameter. The result is -1 if the input ' parameter is less than one; 0 if the input is ' zero; and 1 if the input is > 0 ' ' Syntax: 1. Sign(decimal) ' 2. Sign(double) ' 3. Sign(int16) ' 4. Sign(int32) ' 5. Sign(int64) ' 6. Sign(SByte) ' 7. Sign(Single) ' ' Parameter1: decimal - Any valid System.Decimal data type number ' 2. double - any valid System.Double data type. ' 3. int16 - any valid System.Int16 data type. ' 4. int32 - any valid System.Int32 data type. ' 5. int64 - any valid System.Int64 data type. ' 6. SByte - any valid 8-bit SByte ' 7. Single - any valid single floating-point 32-bit number. ' ' ' Result: Int32 - Returns an integer indicating the sign of the ' input parameter. The result is -1 if the input ' parameter is less than one; 0 if the input is ' zero; and 1 if the input is > 0 ' '******************************************************************************** ' This example is from http://idealprogrammer.com Console.WriteLine("Example #1: Sign(decimal)") Console.WriteLine("Sign(3.5) = {0}", Sign(3.5)) ' Returns 1 'write blank line to make output easier to read Console.WriteLine() Console.WriteLine("Example #2: Sign(double)") Dim myDouble As Double = -6.5 Console.WriteLine("Sign(myDouble) = {0}", _ Sign(myDouble)) ' Returns -1 'write blank line to make output easier to read Console.WriteLine() Console.WriteLine("Example #3: Sign(int16)") Dim myInt16 As Int16 = 0 Console.WriteLine("Sign(myInt16) = {0}", _ Sign(myInt16)) ' 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 myclsSign As New clsSign myclsSign.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 clsSign to MathFunctions folder
- Right-click MathFunctions folder;
- add new item;
- Select class
- Class name could be clsSign
- Click on Visual Basic in code in step 1 above to copy code into clsSign.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