C-Sharp Sign Example – Code Sample Syntax

C-Sharp Sign Example – Code Sample Syntax

Purpose: – Illustrates using .

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)

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.

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

Quick Example
Sign(3.5) // Returns 1

Step 1: Click cs to Cut-n-paste code into clsSign.cs

using System;
public class clsSign
{
 
    public void 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
        //
        // Quick Example: Sign(3.5) // Returns 1
        //
        //********************************************************************************
        // This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Sign(decimal)");
 
        Console.WriteLine("Sign(3.5) = {0}", Math.Sign(3.5)); // Returns 1
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #2: 	Sign(double)");
        double myDouble = -6.5;
        Console.WriteLine("Sign(myDouble) = {0}", Math.Sign(myDouble)); // Returns -1
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #3: 	Sign(int16)");
        Int16 myInt16 = 0;
 
 
        Console.WriteLine("Sign(myInt16) = {0}", Math.Sign(myInt16)); // Returns 0
 
        //Prevent console from closing before you press enter
        Console.ReadLine();
 
    }
 
}

Step 2: Click cs to Cut-n-paste code into Module1.cs

Module Module1
 
    Sub Main()
 
 
        Dim myclsSign As New clsSign
        myclsSign.Main()
 
 
 
    End Sub
 
End Module

Prerequistes:

  1. Install C-Sharp (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.cs

Instructions:
C-Sharp Syntax Functions Sign

  1. Use C-Sharp 2010 Express or Standard Edition
  2. Create new project;
    • Click File/New Project
    • Select Console Application Template
    • Select C-Sharp for Language
    • name of project could be C-Sharp_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 clsSign to MathFunctions folder
    • Right-click MathFunctions folder;
    • add new item;
    • Select class
    • Class name could be clsSign
  6. Click on cs in code in step 1 above to copy code into clsSign.cs
  7. Click on cs in code in step 2 above to copy code into Module1.cs
  8. Click green arrow or press F5 to run program