Chapter 3

Question 1

What is abstraction

Answer 1

Capture only those details about an object that are relevant to current perspective. Abstraction is a way to deal with complexity.

Question 2

What are 2 kind of graphical representations of class

Answer 2

1- Normal Form (class name with attributes and operations)
2- Suppressed Form (only class name )

Question 3

What is inheritance in classes

Answer 3

If a class B inherited from class A then it contains all characteristics (information structure and behavior) of class A

Question 4

What is the main purpose of inheritance

Answer 4

Re usability