VB.NET BigMul Example – Code Sample Syntax

VB.NET BigMul Example – Code Sample Syntax

Purpose: – Illustrates using VB.NET BigMul Code Example.

Purpose:
takes 2 32-bit integer numbers and returns their full
product as a 64-bit integer

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

Imports System.Math
Public Class clsBigMul
 
    Public Sub Main()
 
 
        '********************************************************************************
        ' Purpose: takes 2 32-bit integer numbers and returns their full 
        ' product as a 64-bit integer
        '  
        ' Syntax: 	BigMul(int1 as Int32, int2 as Int32) 
        '
        ' Parameter1: int1 - Int32
        '
        ' Parameter2: int2 - Int32
        '
        ' Result: 64 bit integer - full product of 2 inputs
        '      
        '********************************************************************************
        ' This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	BigMul(int1 as Int32, int2 as Int32)")
        Dim int1 As Int32 = Int32.MaxValue
        Dim int2 As Int32 = Int32.MaxValue
        Dim result As Int64 = 0
        result = BigMul(int1, int2)
        Console.WriteLine(result) ' Returns 4611686014132420609
 
 
 
 
        '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 myclsBigMul As New clsBigMul
        myclsBigMul.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:

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 clsBigMul to MathFunctions folder
   • Right-click MathFunctions folder;
   • add new item;
   • Select class
   • Class name could be clsBigMul
6. Click on Visual Basic in code in step 1 above to copy code into clsBigMul.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