1. Unit 6 Desktop Applications
SD1230

2. Course Objectives
During this unit, we will cover the following course objectives:
Identify the characteristics of desktop applications.
Describe the differences and similarities of desktop, website, and mobile technology.

3. Learning Outcomes Completing this unit should help enable you to:
Identify the characteristics of desktop applications.
Create a simple desktop application.
Given a website or application, identify characteristics that affect its usability on a desktop computer.
Compare the application development learning path for applications typically supported on desktop computers with the learning path for those found on mobile devices.

4. Learning Outcomes (cont.)
Use the programming IDE environment with Visual Basic 2010.
Understand how to create and modify a console-based application.
Understand the logic of decision programming with conditional and loop statements.
Understand how to create and modify a windows application with objects such as text boxes, buttons, and message boxes.

5. Desktop Applications
Applications you run on a laptop or desktop computer
Examples:
Microsoft Office
Graphics programs
Integrated development environments (IDEs)
Games

6. Desktop Application Types
Graphical User Interface (GUI)
Typically has one or more windows
User interacts through menus, buttons, and text fields
Console application
User interacts by typing commands

7. Desktop vs. Mobile Applications
Window size
Large and adjustable
Limited by screen size
User input
Keyboard, mouse, audio, other recording devices
Keypad, touch screen, d-pad, voice
Output
Screen, printer, larger internal storage
Smaller SD card storage, printing through Bluetooth
Resources
Large range of processing and memory configurations
Limited to mobile processing and memory resources

8. Desktop vs. Mobile Application Context
Typically stationary
Dedicated concentration
Desktop
On the move
Distracted concentration
Mobile

9. Program Scale
Small program
Large program

10. Scale of a Problem Based on the following factors:
Difficulty of the solution
Number of functions in the solution
Amount and diversity of data in the solution

11. Analyzing a Small-Scale Problem
What is the input data?
What is the output information?
What are the formulas/processes you have to use to solve this problem by hand?
Are there special conditions?

12. Rock-Paper-Scissors Example
Input
Mode
Names of the players
Choice of paper, rock, or scissors
Output
Winner of the game

13. Rock-Paper-Scissors Example
Tasks
Determine the winner and display the result.
Compute the computer’s move.
Obtain the user’s move.
Obtain the name of the user.

14. Rock-Paper-Scissors Example
Ordered tasks
Obtain the name of the user.
Compute the computer’s move.
Obtain the user’s move.
Determine the winner and display the result.

15. Algorithm to Obtain Name
From Hardnett

16. Algorithm for the Computer’s Move

17. Options for Obtaining Input for User’s Move
Menu
Less error prone
More consistent
Short menus are user friendly
Long menus are difficult to follow
User enters a string
High probability for error
User enters an abbreviation
Must convert to string for output purposes

18. Algorithm for the User’s Move

19. Input Validation

20. Algorithm for Determining the Winner

21. Main Algorithm

22. Random Numbers

23. Demographics Program Example
Input Data
Ethnicity information
Number of people in the chosen population
Output data
Data and distribution table

24. Demographic Example Tasks
Display a menu
Obtain the user’s selection
Execute the selection
Menu-related tasks
Display a list of data
Enter data into a list
Compute the diversity distribution
Operations performed after menu option is selected

25. Main Algorithm

26. Enter Data Algorithm

27. Display Data Algorithm

28. Display Demographics Algorithm

29. Display Demographics Algorithm

30. Switch Statement

31. Switch Statement vs. If-Else

32. Summary In this unit, we covered the following topics:
Desktop applications
GUI applications
Desktop vs. mobile applications
Console applications
Algorithms
Visual Basic

34. Prepare for the Final
An SMS message is limited to ___________ characters. A. 60 B. 140 C. 256 D. 512

35. Prepare for the Final
A(n) _______________ changes the code you type into code a computer can understand. A. analytic engine B. emulator C. scanner D. compiler

36. Prepare for the Final
Which period of time is known as the “Brick Era” because mobile phones were larger than corded phones? A. 1973–1988 B. 1988–1998 C. 1998–2008 D. 2008–2013

37. Prepare for the Final
The binary equivalent of 13 is ___________. A B C D. 1101

38. Prepare for the Final
In the ___________ step, the control unit (CU) determines what type of instruction has been fetched, such as add or equality. A. Fetch instruction B. Decode instruction C. Execute instruction D. Store result

39. Prepare for the Final
The world’s largest mobile operator is in ___________. A. United Kingdom B. China C. Spain D. USA

40. Prepare for the Final
Timothy Berners-Lee developed ____________ in A. HTML B. the Internet C. C++ D. the touch screen

41. Prepare for the Final
Which of the following is not an example of a compiled programming language? A. Pascal B. FORTRAN C. C D. HTML

42. Prepare for the Final
What is the last step of the software engineering spiral process? A. Plan the Next Iteration B. Determine Objectives C. Identify and Resolve Risks D. Develop and Test

43. Prepare for the Final
What is a disadvantage of a native mobile application? A. You cannot charge for the application. B. It cannot take advantage of device-specific features. C. It cannot be easily ported to other mobile platforms. D. It loads pages slowly because of network latency.

44. Prepare for the Final
What is the speed of a 4G mobile network? A. Less than 1 Mbps B. 1–3 Mbps C. 3–5 Mbps D. Unlimited

45. Prepare for the Final
What is an advantage of an SMS application? A. It is useful for sending timely alerts to a user. B. It is simple to create using HTML5 and CSS. C. It offers a best-in-class user interface. D. It can take advantage of advanced device- specific features.

46. Prepare for the Final
Top-down code is ___________ than code that has been broken into functions. A. easier to read and debug B. harder to read and debug C. faster to write, but harder to debug D. more time consuming to write, but easier to debug

47. Prepare for the Final
According to Fling’s book Mobile Design and Development, _________ is what makes mobile such a powerful and exciting medium. A. style B. dimension C. context D. strategy

48. Prepare for the Final
What is the following? cout << “Hello World\n”; A. A Visual Basic statement B. A Java function C. A Pascal function D. A C++ statement

49. Prepare for the Final
Which of the following is not part of the programming the basics stage? A. Writing code that is associated with what happens when the application is first started by the end user B. Writing code that is associated with what happens when the application is exited by the end user C. Any prompts or instructions given by the application to the end user D. Any comments or feedback given by the application to the end user

50. Prepare for the Final
A full-screen immersive context is appropriate for ______________. A. providing information at a glance B. games C. productivity applications D. locale-related applications

51. Prepare for the Final
The MCTS: Windows Mobile 6.5 certification is offered by __________. A. Microsoft B. Apple C. Oracle D. IBM

52. Prepare for the Final
Testing with proper _______ and then thoroughly checking the ________ is by far the best way to check for actual code errors. A. output, input B. input, output C. raw data, formatted data D. data, database

53. Prepare for the Final
Mobile ________ determines how much time, effort, and money it will cost to develop a solution. A. strategy B. context C. design D. platform

54. Prepare for the Final
A glyph appears ___________ on a device with greater pixel density than on one with lower pixel density. A. more blurry B. larger C. sharper D. smaller

55. Prepare for the Final
A ___________ is used to maintain a consistent look and feel. A. context B. design pattern C. palette D. layout

56. Prepare for the Final
The repeat-while statement is an example of a ______________. A. design pattern B. decision statement C. sequence palette D. loop statement

57. Prepare for the Final
The following is an example of a(n) ___________. IF rainfall > 2 inches THEN A. looping statement B. sequential statement C. conditional statement D. design pattern

58. Prepare for the Final
A _____________ shape in a flowchart always has two arrows leaving it. A. diamond B. parallelogram C. rectangle D. circle