CS 4448 - Spring 1998
Object-Oriented Programming and Design
Lecture 4.1

Course Structure

How and why we are doing...
Talks and discussions 15 min. + 5 min.
Work needs to be done right. In business if your work is flawed for any reason or late it can cost you time, money, and even your job.
Discuss Homework #2
Squeak problem found. Comments and variables names only work if you have a writable change file.
Inheritance
- Does number know how to become a Triple, yes and no. Depends on your implementation.
- Don't need super with x and y method in Triple, why?
- Why did we need to implement storeOn: or did we?
- A Point is just a 2D Triple on the 0 plain.
- Reuse!!!! @, asTriple, Round, min: ...
Discuss Homework #4

Chapter 3 & 4

C++
member variables/attributes/data, static var/att/data
.hh versus .cc files
Privileges used with constructor and destructor can help in memory management. P.110
Smalltalk
instance variables, class variables
io - aStream nextPut: $@ , printOn: aStream