CSC 230: Week of 8/30/10

CSC 230: The Week beginning Aug. 30

Homework:

Provide a brief definition of the following terms (in the interface programming context):
- Control (actually this one has at least two meanings in this context)
- Event-Driven
- Form
- IDE
- Property
- Statement
- Variable
If you use a source (book or web site), cite your source. (The sites http://whatis.techtarget.com/ and http://www.webopedia.com/ are decent sources for technical definitions.)
Write a program that displays a welcome message in four different languages as shown below.

Challenge: Have the buttons display the accents in Espanol and Francais.

Due: Sept. 8
Monday:

Syllabus
PowerPoint presentation on downloading software (e.g. Microsoft Visual Studio) from the Microsoft Alliance (ELMS)
PowerPoint presentation on writing one's first Visual Basic program (Hello World) in Microsoft Visual Studio 2010
HelloWorld.zip Compressed version of what we wrote in class. Right click and choose to save. Then right click on that saved file and choose to extract (decompress). Then go into the folders looking for a Windows Visual Studio Solution file (which has an extension .sln if you are viewing extensions). Double click on the solution file to open up Visual Studio. Click on the form we made frmHelloWorld.vb in the Solution Explorer in the upper right hand side.
Wednesday (morning):

LongFace.zip (stretches a PictureBox with an image of a shrunken head in it)
Practice.zip (uses three NumericUpDown controls to change the color of a Label)
SimpleAddition.zip (Adds to numbers input by user into TextBoxes. Had a problem where numbers were being concatenated instead of added. Used CInt() to fix it.
Wednesday (afternoon):

Part 1. Restaurant Bill Calculator.
RestaurantCalculator.zip (zipped up executable file)
Write a Visual Basic program that helps a user calculate a restaurant bill that includes 8% sales tax and allows for the inclusion of a tip.
- Change the Form's BackColor and FontSize properties.
- Have a TextBox where the user can enter the bill amount. It should be "right aligned."
- Have either Labels or TextBoxes with the ReadOnly property set to True to display the Tax amount, the Tip Amount, and the overall Total.
- Have a NumericUpDown control to allow the user to enter a percentage for the tip.
- Have labels to as shown in the exe (the "line" is actually a long, thin Label with its BackColor set to black).
- Have a button that when clicked initiates the calculation.
- Multiply the Bill Amount by 0.08 and display that result as the Tax Amount.
- Multiply the Bill Amount by the percentage from the NumericUpDown control and divide by 100 and display that result as the Tip Amount.
- Add the Bill Amount to the Tax Amount and the Tip Amount. (Make sure you add and don't cancatenate. You may want to use the method CDec() found on page 146 of Gaddis and Irvine.)
- Display the result formatting it as currency. You may want to use the method ToString as shown on pages 154-155.
- Use the TextChanged event of the Bill Abount TextBox to clear out the results when the user changes the value of the bill.
- Use the ValueChanged event of the Tip Rate NumericUpDown control to clear out the Tip and the Total (the Tax is OK).
Part 2. Mouse Over.
MouseOver.zip (zipped up executable and image files)
Write a Visual Basic program that has two images and increases the size (width and height) of the image when the user places the mouse over the image and returns to its original size when the mouse leaves the image area.
- Place two PictureBoxes on a Form.
- Use the Image property dialog box to Import an Image file for each PictureBox.
- Set the PictureBoxes SizeMode property to StretchImage
- Write a MouseEnter method that multiplies the Picturebox's Width and Height by 1.25 (making it 25% bigger).
- Write a MouseLeave method that divides the Picturebox's Width and Height by 1.25 (returning it to its original size).
- Do the same for the second image.
Friday:

MorseCode.zip
MathThing.zip