• Loop
• Iteration
• Infinite loop
• Off-by-one error

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.)

You must have a comment with your name as well as meaningful control names.

Design a form like the one above that allows the user to select and view a multiplication (times) table. One item from the table is selected at random. Its answer is not shown in the table but rather presented as a problem for the user to solve. Your program should have

• The Form’s BackColor set to White and its Font Size set to 20.
• A label with some brief instructions.
• A NumericUpDown control that allows a user to select a variable called Factor – it should be a number between 1 and 12.
• An OK button that when clicked:
  • Displays the corresponding header image (TimesTable1.gif, TimesTable2.gif, etc.) in a PictureBox. (TimesTablesImages.zip)
  • Choose a value for a variable QuizNumber at random – it should be between 1 and 12.
  • A ListBox displaying the selected multiplication table. (The items must be added to the ListBox using a loop. You may need to clear out previous results.)
  • The answer to QuizNumber times Factor is not displayed in the above list.
  • A (quiz) label below the ListBox presents QuizNumber times Factor as a problem for the user.
• A TextBox is provided for the user to make a guess at the quiz question.
• A check Button allows the user to check his/her answer. If the answer is correct, a Label with a smile face is displayed; if the answer is incorrect, a frown face is displayed. (The faces can be obtained by using the Wingding font.) Before the check button is clicked and any time the answer is changed a neutral face is displayed.
• A Clear Button empties out the PictureBox, ListBox, quiz Label and answer TextBox. The face should be returned to neutral.

• Design a form like that above.
• When the user clicks one of the Before, During or After buttons, display the corresponding image (JackBefore.jpg, JackDuring.jpg, and JackAfter.jpg).
• When the user clicks the "See Jack Write" button, use a For-Next loop to write hundreds of copies of the sentence "All work and no play makes Jack a dull boy." to the textbox (which is multiline and scrollable).

• The program simulates die rolls -- either one at a time or in batches the sizes of which are determined by the user who enters them in a (Masked) TextBox.
• There is a button that simulates an individual roll.
• There is a button that simulates a sequence of rolls. This should be done in a Loop, probably a For-Next loop.
• There is a Masked TextBox determining the size of the sequence of rolls.
• You should have a variable tracking the total number of rolls.
• The PictureBox at the top changes to the image corresponding to the last simulated die roll.
• The lower PictureBoxes are static and there is one for each of the possible results on 1 through 6.
• Next to each PictureBox are two TextBoxes (ReadOnly, Right Justified).
• One TextBox will hold the "frequency" -- the number of times that number was rolled.
• The other TextBox will hold the percentage which is the frequency divided by the total number of rolls and formatted as a percentage.
• There should be a Clear button that sets the frequencies to zero, the total number of rolls to zero, changes the displays accordingly.