OOP

Question 1

What is a method?

Answer 1

A function which is a property of an object.

Question 2

How can you tell the difference between a method definition and a method call?

Answer 2

Similar to functions —> definitions have function keyword, calls have the (args) sign

Question 3

Describe method definition syntax.

Answer 3

Function keyword, opt. Fx name (opt parameters) {code body w/opt return statement}

Question 4

Describe method call syntax.

Answer 4

Object.method-to-call(arguments to pass)

Question 5

How is a method different from any other function?

Answer 5

It’s identical EXCEPT that it’s a property of an object

Question 6

What is the defining characteristic of OOP?

Answer 6

Objects can contain both data (as properties) and behavior (as methods)

Question 7

What are the four “principles“ of OOP?

Answer 7

Abstraction, Encapsulation, Inheritance, Polymorphism

Question 8

What is “abstraction”?

Answer 8

Being able to work with (possibly) complex things in simple ways —> abstract away the complicated parts.

Question 9

What does API stand for?

Answer 9

Application Programming Interface

Question 10

What is the purpose of an API?

Answer 10

To give programmers a way to interact with a system in a simplified, consistent fashion (an abstraction)