unit 6 desktop applications. course objectives during this unit, we will cover the following course...
TRANSCRIPT
SD1230
Unit 6Desktop Applications
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.
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.
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.
Desktop Applications
Applications you run on a laptop or desktop computer
Examples: Microsoft Office Graphics programs Integrated development environments
(IDEs) Games
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
Desktop vs. Mobile ApplicationsDesktop Mobile
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
Desktop vs. Mobile Application Context
Typically stationary
Dedicated concentration
Desktop
On the move
Distracted concentration
Mobile
Program Scale
Small progra
m
Small progra
m
Small progra
m
Large progra
m
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
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?
Rock-Paper-Scissors Example Input
Mode Names of the players Choice of paper, rock, or scissors
Output Winner of the game
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.
Rock-Paper-Scissors Example Ordered tasks
1. Obtain the name of the user.2. Compute the computer’s move.3. Obtain the user’s move.4. Determine the winner and display the
result.
Algorithm to Obtain Name
Algorithm for the Computer’s Move
Options for Obtaining Inputfor 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
Algorithm for the User’s Move
Input Validation
Algorithm for Determining the Winner
Main Algorithm
Random Numbers
Demographics Program Example Input Data
Ethnicity information Number of people in the chosen
population Output data
Data and distribution table
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
Main Algorithm
Enter Data Algorithm
Display Data Algorithm
Display Demographics Algorithm
Display Demographics Algorithm
Switch Statement
Switch Statement vs. If-Else
Summary
In this unit, we covered the following topics: Desktop applications GUI applications Desktop vs. mobile applications Console applications Algorithms Visual Basic
Prepare for the Final
An SMS message is limited to ___________ characters.A. 60B. 140C. 256D. 512
Prepare for the Final
A(n) _______________ changes the code you type into code a computer can understand.A. analytic engineB. emulatorC. scannerD. compiler
Prepare for the Final
Which period of time is known as the “Brick Era” because mobile phones were larger than corded phones?A. 1973–1988B. 1988–1998C. 1998–2008D. 2008–2013
Prepare for the Final
The binary equivalent of 13 is ___________.A. 10111B. 1010C. 1110D. 1101
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 instructionB. Decode instructionC. Execute instructionD. Store result
Prepare for the Final
The world’s largest mobile operator is in ___________.A. United KingdomB. ChinaC. SpainD. USA
Prepare for the Final
Timothy Berners-Lee developed ____________ in 1989.A. HTMLB. the InternetC. C++D. the touch screen
Prepare for the Final
Which of the following is not an example of a compiled programming language?A. PascalB. FORTRANC. CD. HTML
Prepare for the Final
What is the last step of the software engineering spiral process?A. Plan the Next IterationB. Determine ObjectivesC. Identify and Resolve RisksD. Develop and Test
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.
Prepare for the Final
What is the speed of a 4G mobile network?A. Less than 1 MbpsB. 1–3 MbpsC. 3–5 MbpsD. Unlimited
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.
Prepare for the Final
Top-down code is ___________ than code that has been broken into functions.A. easier to read and debugB. harder to read and debugC. faster to write, but harder to debugD. more time consuming to write, but easier to debug
Prepare for the Final
According to Fling’s book Mobile Design and Development, _________ is what makes mobile such a powerful and exciting medium.A. styleB. dimensionC. contextD. strategy
Prepare for the Final
What is the following?cout << “Hello World\n”;A. A Visual Basic statementB. A Java functionC. A Pascal functionD. A C++ statement
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 userB. Writing code that is associated with what happens when the application is exited by the end userC. Any prompts or instructions given by the application to the end userD. Any comments or feedback given by the application to the end user
Prepare for the Final
A full-screen immersive context is appropriate for ______________.A. providing information at a glanceB. gamesC. productivity applicationsD. locale-related applications
Prepare for the Final
The MCTS: Windows Mobile 6.5 certification is offered by __________.A. MicrosoftB. AppleC. OracleD. IBM
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, inputB. input, outputC. raw data, formatted dataD. data, database
Prepare for the Final
Mobile ________ determines how much time, effort, and money it will cost to develop a solution.A. strategyB. contextC. designD. platform
Prepare for the Final
A glyph appears ___________ on a device with greater pixel density than on one with lower pixel density.A. more blurryB. largerC. sharperD. smaller
Prepare for the Final
A ___________ is used to maintain a consistent look and feel.A. contextB. design patternC. paletteD. layout
Prepare for the Final
The repeat-while statement is an example of a ______________.A. design patternB. decision statementC. sequence paletteD. loop statement
Prepare for the Final
The following is an example of a(n) ___________.IF rainfall > 2 inches THENA. looping statementB. sequential statementC. conditional statementD. design pattern
Prepare for the Final
A _____________ shape in a flowchart always has two arrows leaving it.A. diamondB. parallelogramC. rectangleD. circle