DEVRY CIS170B WEEK 4 ILAB

(See the Syllabus section "Due Dates for Assignments & Exams" for due dates.)
Submit your assignment to the Dropbox located on the silver tab at the top of this page. For instructions on how to use the Dropbox, please click here.
Remember This!Connect to the iLab here.
iLAB OVERVIEW
Scenario and Summary
You will code, build, and execute a program that simulates the dialing of a phone using methods.
Deliverables
Submit the following to this week's Dropbox:
- A zipped Visual Studio project folder for each programming exercise. Refer to the Deliverables section of the Week 1 iLab page for detailed instructions on how to zip a project folder.
- A single MS Word file named YourLastName_Lab1_ex1.docx containing the following items:
- The source code for each program in the lab: Your source code should use proper indentation, include meaningful comments, and be error free. Start each with a specification that includes your name, the lab and exercise number, and a description of what the program accomplishes, similar to this:
- Labeled screenshot(s) of the output windows for each program, showing that each program produces correct results
/* Specification:
First Name Last Name
Lab 1 Exercise #
This program does X */
NOTE: A screenshot of a window can be created by first clicking on it to activate it. Next, press the key or key combination your specific computer uses to do a "print screen" (typically the Prnt Scrn or Prnt key in combination with the ctrl or FN key). Then, click the MS Word "paste" option to paste the screenshot into the MS Word file.
Objectives and Grading
Lab Objectives:
- Distinguish between by value, by ref, and out parameter types.
- Call class methods using by value, by ref, and out parameters.
- Write your own class methods using by value, by ref, and out parameters.
- To be able to define and use global named constants
- To be able to debug a program of syntax and logic errors
- To be able to use the debug step-into feature to step through the logic of the program and to see how the variables change values
Your lab grade will be based upon:
- the formatting of your source code;
- the use of meaningful identifiers;
- the extent of internal documentation; and
- the degree to which an exercise's specifications are met.
Preparation:
If you are using the Citrix remote lab, follow the login instructions located in the iLab tab in Course Home.
iLab Steps
Step 1:Requirements - Phone Dialing Program | ||||||||||||||||||||
Your mission: A prepaid phone service needs a program that converts alphanumeric keyboard input into a phone number. The user will input eight characters and the program will output either an error message or the translated seven-digit phone number. The input may contain digits, letters, or both. Letters can be uppercase or lowercase. The program will perform the conversion per a standard telephone keypad layout.
The program implements the following methods.
Input errors include the following:
Sample Output: Enter a 7 character phone number: 2132121 Enter a 7 character phone number: 2scdfER Enter a 7 character phone number: 555resw Enter a 7 character phone number: 0988765 Enter a 7 character phone number: 12345678 Invalid input, please try again. | ||||||||||||||||||||
Tips | ||||||||||||||||||||
Best practice: Don't try to write too much at a time! First, write an outline in comments based on the requirements and the pseudocode. Then, implement declaring seven char variables. Make sure to fix any compiler errors before implementing more. Then, write and call an empty GetInput() method that accepts parameters, but does nothing but return a dummy value. Make sure you can pass the seven character variables by reference without compiler errors before implementing any of the GetInput() logic. Keep working incrementally like this, testing as you go. Set breakpoints and use the debugger at each phase to make sure your logic is working correctly. Then, use the same approach to implement the other methods. Test each phase with valid input before handling any invalid conditions. Pseudocode
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END OF LAB |
For instructions on how to use the Dropbox, read these

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Rating:
5/
Solution: DEVRY CIS170B WEEK 4 ILAB