SDD - Object Orientated Programming

Question 1

What is encapsulation?

Answer 1

When a classes properties cannot be accessed directly, instead they must be accessed through the getter and setter methods.

Question 2

Explain what instantiation is…

Answer 2

When an instance (an object) of a certain class is created

Question 3

Explain what a super class and a subclass are…

Answer 3

• A super class is a class that a sub class has been derived from
• A sub class is class that has inherited all of the super class it was derived from’s properties and methods

Question 4

What two things do things do objects and classes have?

Answer 4

Properties (Their data) and methods (What they do with that data, basically code)

Question 5

What is a class?

Answer 5

A class is a template which contains properties (data) and methods (procedures). An object can instantiated from a class, and a sub-class can be derived from a class.

Question 6

How do you instantiate an object from a class (Using Pseudocode)?

Answer 6

DECLARE example1 INITIALLY example (The values for the properties go in here, in respective order)

Question 7

How do you call a method in an object (Using Pseudocode)?

Answer 7

example1.examplemethod (Parameters needed go in here)