Class-level Methods and Inheritance

Although our classes today and tomorow will be distracted by the exciting activities for the Christmas Concert you should be working concentrated to get your exercises completed and to set your mind on something new.

The new concept we are learning about are class-level methods as presented in section 4.3 of our textbook. Class- level methods are new methods that extend an already existing class and make it more powerful. Objetcs of the extended class can perform actions of all original methods and of the the newly created ones.

Class Work

Watch the Presentation about "Class-level methods and inheritance" (click the link to the right) and work on your exercises (see below).

Kristine: Continue working on chapter 2 and do the review for section 2.2 (as posted to the right), then start the Tips and Techniques 2 section and do the review questions for this part (posted to the right).

Exercises to be finished before Christmas

P. 129 Exercise 1: Snow people flip hats
P. 131 Exercise 5: Beetle band duet
P. 133 Exercise 9: Enhanced clever skater.
P. 134 Exercise 12: Funky Chicken Dance or Ninja Practice

Homework

• Complete the vocabulary of chapter 4 (except the last two words). The completed sheet has to be handed in on Dec. 15, 08.
  An empty vocabulary sheet is available here.
• Study for the vocabulary quiz on Dec. 15, 08.