Introduction to Visual Basic

Email me

2009-09-26T12:38:00.000-07:00

I would like you to write me an email with the following information:

Your name
Any programming experience
Why you are taking this class
What you hope to gain from this class
Any other information you'd like me to know

david.freer@gmail.com

First class code!

2009-09-08T18:46:00.001-07:00

Here is the code from the first class!

First class

2009-09-08T18:42:00.001-07:00

My email address:

david.freer@gmail.com

Please email me if you have any questions!

Install VB Express.

2009-07-09T17:07:00.001-07:00

DOCUMENT 1.

To publish the project, follow the Wizard under Build -> Publish.

From the UK

2009-07-09T16:48:00.001-07:00

This example shows step by step how to connect a database to a VB.NET program.

In my opinion, this is the best tutorial I have found to connect a database and a VB.NET forms application without using the Wizard. Everything is step by step and done without much jargon or added complication. I think you will find it useful.

Remember: For the time of day=
Now.TimeOfDay.ToString

Excellent Links for DB Programming

2009-07-09T16:45:00.000-07:00

This is a school database example that can be used as a template to create a working application. Click here.

Student...Graduate Student

2009-07-07T18:25:00.000-07:00

Create a student class with two attributes and getters and setters.

Create a graduate student class with one other attribute.

Allow users to enter the info about one or the other...create the two objects depending on what the user chooses.

Here's the code from tonight's class (Baseball Players).

When creating classes....

2009-07-07T18:17:00.000-07:00

MyBase.New() 'will access the parent classes constructor

Public Class BaseballPlayer
Inherits Player

'to create a BaseballPlayer from a Player class!

Here is the presentation...

2009-07-07T17:18:00.000-07:00

Code from today

2009-07-02T18:39:00.000-07:00

LemoninfoTableAdapter.Insert(txtID.Text, txtLargeSold.Text, _
txtSmallSold.Text, txtName.Text)
Dim newRow As LemonadeStandDataSet.LemoninfoRow
newRow = LemonadeStandDataSet.Lemoninfo.NewLemoninfoRow
newRow.ID = txtID.Text
newRow.LargeSold = txtLargeSold.Text
newRow.SmallSold = txtSmallSold.Text
newRow.SalespersonName = txtName.Text
LemonadeStandDataSet.Lemoninfo.Rows.Add(newRow)

This above code is the most important from today!

Here are the two projects.

Database project

2009-06-30T18:51:00.000-07:00

Here it is.

To determine prime number

2009-06-30T18:15:00.001-07:00

Function determinePrime(ByVal x As Integer) As Boolean
For a = 2 To x / 2
If x Mod a = 0 Then
Return False
End If
Next
Return True
End Function

Serial Port Tutorial

2009-06-30T16:56:00.001-07:00

Try this!

Lemonade

2009-06-30T16:45:00.001-07:00

Click here for lemonade.zip.

Today's code!

2009-06-25T18:57:00.001-07:00

Click here for today's code.

Here is the code from mediafire.

OOP Four Questions!

2009-06-25T17:00:00.001-07:00

What is object oriented programming?
What is a class?
What is an object?
What is an attribute?

Code from the first class

2009-06-23T18:25:00.001-07:00

Here are the projects from the first class.

First blog post

2009-06-23T18:05:00.001-07:00

What do you hope to accomplish by the end of the course?

Next, copy sample code from the Console applications as well as from the GUI application that we created.

Miles per gallon program!

2009-06-23T17:08:00.001-07:00

'Ask the user for the distance they travelled (in miles)
'ask the user how much gas they used (in gallons)
'calculate the miles per gallon and determine whether the
'driver is getting a good miles per gallon!

Some information about yourself!

2009-06-23T15:53:00.001-07:00

To download Visual Basic Express

2009-06-23T15:50:00.001-07:00

Click here.

david.freer@gmail.com

dfreer@mdc.edu

Program

2009-06-06T12:34:00.001-07:00

'read in a user's name. If the name is longer than 10 characters, tell
'the user their name is too long. Otherwise give them a friendly greeting!
'make a Function. Give it an appropriate name.

LoveTester Time

2009-06-06T11:59:00.000-07:00

Create a LoveTester application!

On your blog...

2009-06-06T11:57:00.002-07:00

I would like for you to define:

Sub routine
Function
Algorithm
Namespace
"My" as it relates to Visual Basic .NET

largest number function

2009-06-06T11:57:00.001-07:00

Function largestNumber(ByVal num1 As Integer, ByVal num2 As Integer, ByVal num3 As Integer) As Integer
Dim largestNum = num1
If num2 > largestNum Then
largestNum = num2
End If
If num3 > largestNum Then
largestNum = num3
End If
Return largestNum
End Function

First assignment, third class

2009-06-06T11:20:00.000-07:00

'make a sub routine that takes in a number and print out
'that number squared!

Prime Number CODE

2009-05-30T13:56:00.001-07:00

Module Module1
Sub Main()
'Dim y As Integer = 10
'While y > 0
' Console.WriteLine("Happy Birthday to you!")
' y = y - 1
'End While
'Dim x As Integer = 0
'While x < 100
' If x Mod 2 = 0 Then 'Mod keeps dividing until there is a remainder
' Console.WriteLine(x)
' End If
' x += 1
'End While
'Console.WriteLine("I have printed out all the " & _
' " even numbers less than 100")
'I want you to print out all the numbers from 5 to 5000
'counting by 5s!
'Count from 3333 to 3 by 3s, going backwards.
Dim counter1 As Integer = 1
Dim stop1 As Integer = 100
'For counter1 = 1 To stop1
' Console.Write("Hello!")
' For a As Integer = 1 To 1000
' Console.Write("Hello!!")
' Next
'Next
'A number is prime if it is only divisible by 1 and itself
'3,5,7...prime numbers never stop
'find out if a number is prime!
'have the user enter in a number..find out if it is a
'prime number ...hint***: You'll need the Mod operator
Dim boolVar1 As Boolean = True
'print out all the prime numbers up to 100!
'Console.WriteLine("Please enter a number")
'Dim numberEntered As Integer = Console.ReadLine
For firstCounter As Integer = 1 To 100
For a As Integer = 2 To (firstCounter / 2) + 1
If firstCounter Mod a = 0 Then
boolVar1 = False
End If
Next
If boolVar1 = True Then
Console.WriteLine(firstCounter & " is a prime number")
End If
boolVar1 = True
Next
Console.ReadLine()
End Sub
End Module

What did I learn today?

2009-05-16T14:46:00.002-07:00

The first VB.NET class I learned...

Here is the code from the first class.

Code from GUI NumberGuesser

2009-05-16T14:46:00.001-07:00

Public Class Form1

Private Sub btnGuess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGuess.Click
Dim numberGuessed As Integer = txtNumber.Text
Dim luckyNumber As Integer = 77

If Math.Abs(luckyNumber - numberGuessed) < 10 Then
MsgBox("You are within 10!")
End If
End Sub
End Class

functions

2009-05-16T14:19:00.001-07:00

Module Module1

Sub Main()
'do some procedural programming

'user enters a number and gets back the number squared
Console.WriteLine("Please enter a number")
Dim a As Integer = Console.ReadLine
Dim newNumber = a * a 'squared the number
Dim newNumber2 = a ^ 2
Dim newNumber3 = Math.Pow(a, 2)

Console.WriteLine(newNumber)
Console.WriteLine(newNumber2)
Console.WriteLine(newNumber3)

'ask the user for the side of a square. give the user back the perimeter and area.
Console.WriteLine("Please enter the side of a square:")
Dim sideOfSquare As Decimal = Console.ReadLine
Console.WriteLine("The area is " & calculateArea(sideOfSquare))
Console.WriteLine("The perimeter is " & calculatePerimeter(sideOfSquare))
Console.WriteLine("The area of a circle with a radius of 10 is " & calculateAreaOfCircle(10.0))

Console.ReadLine()
End Sub

Function calculatePerimeter(ByVal side As Decimal) As Decimal
Return side * 4
End Function

Function calculateArea(ByVal side As Decimal) As Decimal
Return side * side
End Function

'define a function that calculates the area of a circle given the radius!
Function calculateAreaOfCircle(ByVal radius As Decimal) As Decimal
'pi* r^2
Return Math.PI * (radius ^ 2)
End Function

End Module

Create a blog

2009-05-16T12:46:00.000-07:00

Go to www.blogger.com
Create a blog, choose the name you want
First post will be about:
What is object oriented programming?
What is a class?
What is an object?
What is an attribute?
Publish your blog.
Leave a comment on this blog with your URL!

First VB project

2009-05-16T12:39:00.001-07:00

'you will ask the user for the distance they've driven in miles

'you will ask the user for the amount of gas they used

'give the user the miles per gallon of their vehicle!

Code from first example

2009-05-16T12:38:00.001-07:00

Module Module1

Sub Main()
Console.WriteLine("Hello World!")
Console.WriteLine("Please enter your name:")
Dim userName As String = Console.ReadLine()
'declaring a variable to hold a String!
Console.WriteLine("Welcome " & userName & " we are glad you are here!")
Console.WriteLine("How many years have you lived?")
Dim ageOfUser As Integer = Console.ReadLine()
Dim userInEightYears As Integer = ageOfUser + 8
Console.WriteLine("In eight years you will be " & userInEightYears & " old")
Console.WriteLine("Someone half your age is " & ageOfUser / 2 & " years old")
Console.WriteLine("Someone twice your age is " & ageOfUser * 2 & " years old")
If ageOfUser > 10 Then
Console.WriteLine("The secret to life is do things you enjoy!")
Else
Console.WriteLine("You already know the secret!")
End If
Console.ReadLine()
'this is conditional logic
End Sub

End Module

Second assignment!

2009-05-16T12:35:00.000-07:00

'Making a guessing game that asks the user for a number
'if the number is less than 10, tell them it is bad luck
'if the number is 12, tell them the number is okay
'if the number is 101, tell them they are great people for guessing such a number
'else say thanks for your time

Connect and update databases!

2009-04-04T10:40:00.001-07:00

View here.

Project Discussion / Database review next Saturday!

2009-03-28T14:44:00.000-07:00

If you are interested in one last class, we can meet here next Saturday at 2pm to discuss projects you are working on and database connectivity! Email me if you are interested:

david.freer@gmail.com

Visual Web Developer

2009-03-28T14:03:00.001-07:00

http://www.microsoft.com/express/vwd/

In class assignment :)

2009-03-26T16:57:00.001-07:00

Keep track of
1. The number of hotdogs
2. The number of drinks
3. How many hotdogs sold
4. How many drinks sold
5. Total Revenue, Total Profit
6. Allow the cart to get more hotdogs and more drinks
7. Create your program so it has a pleasing look

Sum up the skills we learned today (Visual Basic Express!)

2009-03-24T18:34:00.001-07:00

On your blog, recap what we have done today!

For "homework" design a simple screen for a bicycle store. Allow the users to get info about bikes!

catching errors!

2009-03-24T18:33:00.001-07:00

Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim result As Integer
Dim num1, num2 As Integer
'storage!
Try
num1 = txtNum1.Text
Catch ex As Exception
MsgBox("You have to enter a number!")
txtNum1.Text = ""
txtNum1.Focus() 'bring back the user to the location
End Try
Try
num2 = txtNum2.Text
Catch ex As Exception
MsgBox("You have to enter a number!")
txtNum2.Text = ""
txtNum2.Focus()
End Try
'convert String into Integer
result = num1 + num2
'calculation!
'input within the textboxes!
lblResult.Text = result
'output with the label!
End Sub
End Class

Code from today

2009-03-24T17:36:00.001-07:00

Public Class Form1
Dim foodInfo(4) As String
'Cakes
'Bread
'Meat
'Seafood
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
foodInfo(0) = "Cakes at Publix are the highest quality!"
foodInfo(1) = "All the bread at Publix is fresh"
foodInfo(2) = "Publix meat is the best in the world"
foodInfo(3) = "Our seafood !! is caught freshly every day!"
If ComboBox1.Text = "Cakes" Then
'output info to lblInfo
lblInfo.Text = foodInfo(0)
ElseIf ComboBox1.Text = "Bread" Then
PictureBox1.ImageLocation = "http://upload.wikimedia.org/wikipedia/commons/1/1f/FD_1.jpg"
'PictureBox1.Visible = False
'PictureBox2.Visible = True
lblInfo.Text = foodInfo(1)
ElseIf ComboBox1.Text = "Meat" Then
lblInfo.Text = foodInfo(2)
ElseIf ComboBox1.Text = "Seafood" Then
lblInfo.Text = foodInfo(3)
End If
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
foodInfo(0) = "Cakes at Publix are the highest quality!"
foodInfo(1) = "All the bread at Publix is fresh"
foodInfo(2) = "Publix meat is the best in the world"
foodInfo(3) = "Our seafood !! is caught freshly every day!"
If txtProduct.Text = "Cake" Then
lblInfo.Text = foodInfo(0)
ElseIf txtProduct.Text = "Bread" Then
lblInfo.Text = foodInfo(1)
End If
End Sub
End Class

Code for Lemonade Stand

2009-03-19T17:15:00.000-07:00

Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim costOfCup As Decimal = 1.15
Dim largeCup As Decimal = 1.75
Dim totalCost As Decimal = 0.0
If CheckBox1.Checked = True Then
totalCost = largeCup * txtCups.Text
Else
totalCost = costOfCup * txtCups.Text
End If
lblPrice.Text = totalCost
End Sub
End Class

---
Give a description of what this code does:
....

Welcome Visual Basic Express Students!

2009-03-19T16:59:00.001-07:00

For your first post I would like you to summarize the things you have learned so far...

Please finish your Vehicle, Truck, and Car example

2009-03-14T14:50:00.000-07:00

Your "homework" is to finish your Vehicle, Truck and Car example if you didn't in class.

Also read Chapter 11 in your book as we will be covering database connectivity in the next class.

Create a presentation using PowerPoint...

2009-03-14T11:47:00.001-07:00

CLR, .NET Framework, History of Visual Basic, ASP .NET, C#, XML

Here is the code!

2009-02-28T14:31:00.000-08:00

Click here to see one way of parsing data:

Apple .99
Pie 2.50
Cookie .99
Tea 1.25

Today's first exercise!

2009-02-28T11:12:00.001-08:00

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.
Find the sum of all the multiples of 3 or 5 below 1000.

Last class

2009-02-21T15:08:00.000-08:00

Make a Console application that asks for a user's name and gives them a happy message in return while using their name. "&"
Depending on the first letter of their name give two different messages. subString and if statements.
Ask for an age. If the age is greater than 70 and their first name starts with "E" give them a separate funny message.
Students will make an application to figure out the Horroscope. Users will pick their signs and get a message based on their future.
Use quotation marks in their output.
Add NumericUpDown.
Read in Name and output it.
Ask for a number 1 to 100. Tell the user if it's in the 1st quarter, 2nd quarter, 3rd quarter, or 4th quarter.
Create a BankAccount class. Here are some possible attributes (fields):
Balance, owner, day, status, social security number.
View the information that was entered in!

February 7th, 2009

2009-02-07T12:29:00.000-08:00

Add 2+5
Take in two numbers and add them. Multiply them and give both results.
Use a subroutine to determine if a number is Prime. Post the code to your blog!
Think of a project that you would be interested in creating with VB.NET. Write on your blog possible users, input, output.

Code for triangle numbers and their factors!!!

2009-01-31T13:14:00.001-08:00

Module Module1
Sub Main()
Dim counter As Integer
'add another variable!
Dim diff As Integer = 1
Dim totalFactors As Integer = 0
Dim factorCounter As Integer
For counter = 1 To 60000
'Console.WriteLine(counter)
For factorCounter = 1 To counter
If counter Mod factorCounter = 0 Then
totalFactors = totalFactors + 1
End If
Next
If totalFactors > 50 Then
Console.WriteLine(counter)
End If
counter = counter + diff
diff = diff + 1
totalFactors = 0
Next

'1, 3, 6, 10, 15, 21, 28
'print out the first 10 triangle numbers!
Console.ReadLine()
End Sub
End Module

On your blog...

2009-01-31T12:56:00.001-08:00

Please explain...

What an if statement is and what it is used for.
What a loop is and what it is used for.

Put a code example on your blog. What is the syntax for each!

First code in VB .NET!

2009-01-24T13:38:00.001-08:00

Module Module1
Sub Main()
'to make a variable ... Dim variable1 As
'Console write line!
'Console read line!
'This is a comment. You use comments so other programmers
'can know what you mean!!
'Miles Per Gallon Calculator!
Dim miles As Decimal
Dim gallons As Decimal
Dim mpg As Decimal
Console.WriteLine("Please enter the distance in miles:")
miles = Console.ReadLine
Console.WriteLine("Please enter the gallons used:")
gallons = Console.ReadLine
' We need to calculate the miles per gallon!
mpg = miles / gallons
Console.WriteLine(mpg)
'Console.ReadLine()
'to see if we have the correct information
'100 miles / 10 gallons of gas -> 10 mpg
End Sub
End Module

We are going to work on a MPG program next!

2009-01-24T12:41:00.000-08:00

It will be fun!

A great site to learn about OO Programming Using VB

2009-01-24T12:28:00.000-08:00

Great site to learn about OO using VB!

http://www.codeproject.com/KB/vb/OOPS_In_VBNET.aspx

What are possible attributes and methods for a Lemonade Stand?

2009-01-24T12:17:00.000-08:00

On a blog,

http://www.blogger.com/

I'd like you to list the possible attributes and methods for a Lemonade stand.

When you are finished with your blog, I'd like you to email me the URL.

You may work with someone next to you!

I'd also like you to include the data type for your attributes:

http://www.ondotnet.com/pub/a/dotnet/2001/07/30/vb7.html

DF

OO Programming!

2009-01-24T12:11:00.000-08:00

http://mdcvb.blogspot.com/2008/09/object-oriented-programming_13.html

Key words RESERVED!!

2009-01-24T12:07:00.000-08:00

http://mdcvb.blogspot.com/2008/09/object-oriented-programming.html

Email

2009-01-24T11:17:00.000-08:00

What's your name?
What sort of programming experience do you have?
What are you interested in getting out of this class?
Is this class for your job or personal reasons?

david.freer@gmail.com

Welcome to class!

2009-01-24T11:14:00.001-08:00

I look forward to a great semester!

Visual Basic Dates

2008-10-04T14:05:00.001-07:00

Dates.

Video Series

2008-10-04T13:36:00.001-07:00

http://msdn.microsoft.com/en-us/vbasic/bb466226.aspx

Exercises today:

2008-09-27T16:55:00.000-07:00

Asking a user for info that will be useful in making a dating application!

You will need a(n):

Checkbox

ComboBox

Labels

You need to ask the user for some information about themselves and quanitify it! Make a scale of compatibility for two people. You will ask the same questions of two people on the same form.

Give them back a percetage and a memorable saying!

Here's my code for the Love Tester!

2008-09-27T14:32:00.000-07:00

'When you click the button:

Dim love As Integer = 0
If (CheckBox1.Checked And CheckBox2.Checked) Then
love = love + 5
ElseIf CheckBox1.Checked Then
love = love - 2
End If
If TextBox1.Text.Length = TextBox2.Text.Length Then
love = love + 100
End If
If ComboBox1.SelectedItem = "Running" And ComboBox2.SelectedItem = "Running" Then
love = love + 11
End If
If love > 50 Then
lblLove.Text = "You are a good match " & love
ElseIf love > 20 Then
lblLove.Text = "You are an okay match " & love
Else
lblLove.Text = "You should run! " & love
End If

Student Grader

2008-09-27T13:24:00.000-07:00

GUI Based
Ask User for a grade (number from 0-100)
Give the project a letter grade based on an if and else if series of conditions
Add a check box for extra credit, if selected add an extra 5 points to their grade!
A >= 90
B >= 80
C >= 70
D >= 60
F < "60"

Error Checking with isNumeric

2008-09-27T13:22:00.000-07:00

Dim distance As Decimal = 0
Dim gallonsused As Decimal = 0
Dim mpg As Decimal = 0
If IsNumeric(Textgas.Text) = True And IsNumeric(Textmiles.Text) = True Then distance = Textmiles.Text
gallonsused = Textgas.Text
mpg = distance / gallonsused
Math.Round(mpg, 2)

mpgdisplay.Text = (mpg & " is your miles per gallon (mpg)")
Dim alertvariable As String = "Alert you are a gas guzzler!!!"
If mpg < 10 Then
alertlabel.Text = alertvariable
End If
If gallonsused > 50 Then
lblgasused.Text = ("you are using too much gas")
Else
MsgBox("You messed up. Gotta enter numbers")
End If
Else
MsgBox("Enter numbers")
Textmiles.Text = ""
Textgas.Text = ""
End If

Here are some interesting links:

2008-09-27T11:15:00.001-07:00

http://blogs.msdn.com/vbteam/

You can ask questions here:

http://stackoverflow.com/

What I Learned in the Second VB "Class"

2008-09-20T14:56:00.003-07:00

Please write on your blog what you learned today!

Follow along with the book by reading and doing exercises from Chapter 1 through Chapter 5. If statements are from Chapter 7.

Code

2008-09-20T13:33:00.001-07:00

Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim name As String = nameOfStudent.Text
'add the ability to read in the gpa from the user!!!
Dim gpa1 As Decimal = gpa.Text
Dim newStudent As New Student(name, gpa1)
'using the name entered by the user in the constructor!!
studentName.Text = newStudent.getName
gpaLbl.Text = newStudent.getGPA

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'first we will get the school name from the user!!!
Dim schoolName As String = txtSchoolName.Text
'now we need to write out the school name TO the user!!!
displayName.Text = schoolName
End Sub
End Class

Object Oriented Programming Review!

2008-09-20T11:26:00.001-07:00

On your blog, pick a topic that you have some expertise with or something you believe can be easily solved using an OO approach.

Please write down the class name, the attributes, and the methods.

Class Employee

Attributes:

Methods:

Visual Basic Certifications

2008-09-20T11:11:00.000-07:00

Here is the certification information.

Visual Basic Coding

2008-09-18T19:29:00.001-07:00

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim newStudent As New Student("joe", 2.3)
Label1.Text = newStudent.hey
End Sub
End Class

Public Class Student
Dim name As String
Dim gpa As Decimal

Public Sub New(ByVal name1 As String,ByVal gpa1 As Decimal)
'Intializes object from datarow
name = name1
gpa = gpa1
End Sub

Public Function hey() As Double
Return gpa
End Function

End Class

What did you learn today?

2008-09-13T14:58:00.001-07:00

What, if anything, did you learn today?

On September 13th, we did the following programs:

Miles per gallon calculator
Number-squarer
Subtract the second number from the first number

We discussed:

Object-oriented programming
UML diagrams for LunchCart, Baseball team
History of programming
Began Visual Basic syntax

For class two

2008-09-13T14:43:00.000-07:00

Please read chapter 1 and 2 in the textbook and the links below.

MPG code and Squaring Number Code

2008-09-13T14:33:00.001-07:00

Module Module1

Sub Main()

Console.WriteLine("Please enter the miles driven (in miles)")
Dim milesDriven As Decimal = Console.ReadLine()
Console.WriteLine("Please enter the gas used (in gallons)")
Dim gasUsed As Decimal = Console.ReadLine()
'declaring variable gasUsed as a decimal
'and reading line from the console!
Dim mpg As Decimal = milesDriven / gasUsed
Console.WriteLine(mpg & " is the mpg used")

'Square your number program!
Console.WriteLine("Please enter a number to be squared ")
Dim numberToBeSquared As Decimal = Console.ReadLine
Dim numberSquared As Decimal = numberToBeSquared ^ 2
Console.WriteLine(numberToBeSquared & " was your number")
Console.WriteLine(numberSquared & " is the number squared")
Console.WriteLine("Enter any number to quit")
Dim endProgram As String = Console.ReadLine
'* multiplication
'/ division

End Sub

End Module

Object Oriented Programming

2008-09-13T13:07:00.001-07:00

Constructors
Constructors allow you to create an object and provide it with an initial set of data so it can initialize properly. Without constructors, you create an object, then need to all a separate method to initialize it. Two steps.

Encapsulation
Is data hiding. You can create a set of procedures or methods and properties that form an interface. Other code can then use these methods with any knowledge of the code within the methods. The procedures or methods you write is called an implementation. The implementation is encapsulated within the interface.

Inheritance
The concept that an object can gain the interface and actual behaviors (implementation) of another object, then extend that interface or those behaviors. Say you create a generic Product object that handles things common to all your products. From it you may create specialized Perishable and Non-Perishable objects. Both objects inherit the original Product object's interface and behaviors but can extend or change some of those behaviors.

Initializers
An initializer allows you to declare a variable and assign it an initial value all in one statement.

Object-Based
This loosely describes a language that interacts with objects easily and directly.

Object-Oriented
Object oriented languages must support polymorphism, inheritance and encapsulation (PIE).

Overloading
This allows you to declare multiple procedures with the same name in the same scope each having different input parameter specifications. For instance, you many define a function CreateTotal that totals the values in its array argument and another CreateTotal function that takes 5 long arguments and returns their sum. You call CreateTotal and pass it the proper parameters and the language will know which version of the function to use.

Overriding
When using inheritance your new class gets all the methods from its parent or super class. However you may want a different implementation for one of these methods. You do so by overriding the original (inherited) method with your own code. Your new code may even call the original method in the parent class.

Polymorphism
This is the ability to have two different objects of two different types both implement the same method. It lets you write code that calls that method regardless of which type of object is in use at the moment.

Shared Members
Otherwise know as class, static or instance members. Shared members are methods or variables that are equally available to all instances of a class. Every object that you create, based on a given class, shares these same variables and routines.

User Interface Inheritance
Means you can create a VB form template then derive all your other forms from this template. All other forms will inherit the look and code from the template form. A change to the original form will propagate out to all the child forms.

More information:

http://en.wikipedia.org/wiki/Object-oriented_programming

Object Oriented Programming

2008-09-13T12:17:00.000-07:00

Here's some information from Microsoft about OO programming with VB.

 And
As
Call
Do
Exit
False
True
For
Function
GoTo
If
Loop
Me
Next
Not
Nothing
Option
Or
Private
Public
Resume
Step
Sub
Then
Until
While
If..Else..ElseIf..Then

Getting to know you!

2008-09-13T08:41:00.000-07:00

Welcome to Visual Basic at Miami Dade Community Education

2008-09-13T07:59:00.000-07:00

In this class we will learn how to program with Visual Basic .NET with an emphasis on object oriented design. Everyone will feel comfortable designing and coding projects by the end of the class. We will analyze problems in class and code solutions in groups and individually.

I'm very excited to be your teacher. I look forward to a great class!

Today's outline:

Getting logged in
Introductions
Getting the book
Review the syllabus.
Pseudocode: You can't write code if you don't understand the problem!
Expectations for the class
What are your expectations for this class??
UML for a LunchCart
Attributes and Methods
Comments, source code, and other terminology
Writing a console program
HelloWorld
Calculate mpg
Square numbers
Keeping current with programming trends
Feedback

Interested in source code? Check out Google Chrome.

Introduction to Visual Basic

Email me

First class code!

First class

From the UK

Excellent Links for DB Programming

Student...Graduate Student

When creating classes....

Here is the presentation...

Code from today

Database project

To determine prime number

Serial Port Tutorial

Lemonade

Today's code!

OOP ** Four Questions! **

Code from the first class

First blog post

Miles per gallon program!

Some information about yourself!

To download Visual Basic Express

Program

LoveTester Time

On your blog...

largest number function

First assignment, third class

Prime Number CODE

What did I learn today?

Code from GUI NumberGuesser

functions

Create a blog

First VB project

Code from first example

Second assignment!

Connect and update databases!

Project Discussion / Database review next Saturday!

Visual Web Developer

In class assignment :)

Sum up the skills we learned today (Visual Basic Express!)

catching errors!

Code from today

Code for Lemonade Stand

Welcome Visual Basic Express Students!

Please finish your Vehicle, Truck, and Car example

Create a presentation using PowerPoint...

Here is the code!

Today's first exercise!

Last class

February 7th, 2009

Code for triangle numbers and their factors!!!

On your blog...

First code in VB .NET!

We are going to work on a MPG program next!

A great site to learn about OO Programming Using VB

What are possible attributes and methods for a Lemonade Stand?

OO Programming!

Key words RESERVED!!

Email

Welcome to class!

Visual Basic Dates

Video Series

Exercises today:

Here's my code for the Love Tester!

Student Grader

Error Checking with isNumeric

Here are some interesting links:

What I Learned in the Second VB "Class"

Code

Object Oriented Programming Review!

Visual Basic Certifications

Visual Basic Coding

What did you learn today?

For class two

MPG code and Squaring Number Code

Object Oriented Programming

Object Oriented Programming

Getting to know you!

Welcome to Visual Basic at Miami Dade Community Education

OOP Four Questions!