CSSE 220: Day 6

Topics

• What's in a class?
• Cohesion and coupling of classes
• Immutable classes
• Side effects
• Call by value, call by reference
• Scope

Outline

• [15 min] Composing classes
• [2 min] Immutable classes
• [15 min] Side effects
• [15 min] Scope
• [5 min] Break
• [18 min] Call-by-value vs call-by-reference
• [35 min] Continue work on project 7.2 (p. 324). Use good software engineering practice to develop your code, in particular follow this process:
  1. Understanding the requirements. (Feel free to play the game.)
  2. Design your classes: provide fields and method stubs. This does not have to be the final set-up but should be an honest effort.
  3. Comment the public portions of your code using JavaDocs. Comment the private portions using inline comments.
  4. Develop JUNIT testcode for the methods in your code.
  5. Implement the method stubs, add and revise methods as necessary.
  6. All the while, use JUNIT testing to ensure your code works as specified.
  7. Perform system testing by ensuring that all the code works well together.

Resources

• Slides for chapter 8

Assignments

• Day 7, BC: Read sections 9.1 - 9.3. We will have a reading quiz.
• Day 8, BC: Finish the project begun in class and submit it to the appropriate drop-box on Angel.