Ch12_Examples - 1 Programming Logic and Design 8th Edition...

Programming Logic and Design, 8th Edition
Chapter 12
Programming Exercises
1. Assigned
2. Select one element of poor GUI design in a program you have used. Describe how
you would improve the design.
Answer:
Student answers will vary, but should address whether the interface is natural,
predictable, attractive, easy to read, nondistracting, the extent to which the user can
customize the screen, and whether the program/interface is forgiving. The student
should explain which guideline is not met, and how she would change the application
in order to conform to the guideline.
3. Select a GUI program that you have never used before. Describe how well it
conforms to the GUI design guidelines listed in this chapter.
Answer:
Student answers will vary, but should address whether the interface is natural,
predictable, attractive, easy to read, nondistracting, the extent to which the user can
customize the screen, and whether the program/interface is forgiving.
4. Assigned
5. Asigned
6. Design the wireframes and storyboard, interactivity diagram, object dictionary, and
any necessary scripts for an interactive program for customers of the Dharma Day
Spa.
Allow customers the option of choosing a manicure ($10), pedicure ($25), or both
($32). After the customer clicks a Select button, display the price of the service.
Answer:
Storyboards
Screen 1
1
Service
o Manicure
o Pedicure
o Both
Select

Screen 2
Interactivity Diagram
Object dictionary
Object name Screen Variables affected Script?
2
Screen 1 Screen 2
Price of the service:
$32
Exit

number
Label dharmaLabel 1 none none
Label serviceLabel 1 none none
RadioButton
manicureRadioButton
1 servicePrice none
RadioButton pedicureRadioButton 1 servicePrice none
RadioButton bothRadioButton 1 servicePrice none
Button selectButton 1 servicePrice selectRoutine()
Label priceLabel 2 none none
Label serviceAmtLabel 2 none none
Button exitButton 2 none exitRoutine()
Script
public void selectRoutine()
Declarations
num MANICURE_AMT = 10
num PEDICURE_AMT = 25
num BOTH_AMT = 32
num servicePrice
if manicureRadioButton.getChecked() then
servicePrice = MANICURE_AMT
else
if pedicureRadioButton.getChecked() then
servicePrice = PEDICURE_AMT
else
if bothRadioButton.getChecked() then
servicePrice = BOTH_AMT
endif
endif
endif
serviceAmtLabel.setText(servicePrice)
screen1.remove()
screen2.display()
return
start
screen1.display()
stop
public void exitRoutine()
screen2.remove()
return
7. Design wireframes and storyboard, interactivity diagram, object dictionary, and any
necessary scripts for an interactive program for customers of the Friar Farm Market.
Allow customers the option of choosing tomatoes ($3.00 per pound), peppers ($2.50
per pound), or onions ($2.25 per pound). The customer enters a weight in pounds in a
text box. After the customer clicks a Select button, display the price of the order.