Grouping Objects, Collections, Traversals

“Programs must be written for people to read, and only incidentally for machines to execute.”
- Abelson and Sussman

• Assignment 2: A more sophisticated clock display
  • due: this Friday
  • questions?

• Lecture notes
  • BlueJ text, chapter 4 PDF PPT
    • we’re running Java 6, not Java 7
    • so note, but ignore, references to “diamond notation” (i.e. slide 9)
  • Chapter 4 demo projects:
    • grab a copy of your own to play with:

      $ cd cs102
      $ cp -r ~cs102/bluej/projects/chapter04/ ./

    • music-organizer(s): v1–v5 (ArrayLists, iteration, iterators)
    • auction (method chaining and null)
    • weblog-analyzer (uses arrays)

• Lecture notes
  • BlueJ text, chapter 4 PDF
  • Chapter 4 demo projects

• Assignment 2: A more sophisticated clock display
  • due: today

• Lab 4: Wanna join my club?

• Assignment 3: Extending club membership
  • due: next Fri, Feb 17