AP Computer Science 1.2 Inheritance, Abstraction, and Polymorphism

efforts to reduce your carbon footprint Which of the following

is a correct way to begin writing your class carbon

footprint like tires All right And here the potential answers

public clan All right well the key to answering this

question is knowing the syntax of defining a subclass in

java But what is a sub class submarine class Well

it's a lot like a normal class except a subclass

also inherits things from the super class it's extending from

so once we get set up and we're messing around

with our new bicycle class we'll be able to use

the access or methods of vehicle that we've already written

Got it all right Well this idea is known as

inheritance in object oriented programming and it doesn't involve trying

to make your distant ninety eight year old relatives think

you're interesting Anyhow this is a question of syntax and

that's In texas public class new subclass extends class way

know for a fact that bicycle is intended to be

a subclass of vehicle It hangs down like fruit on

a tree so he is certainly out He creates a

class called vehicle that extends from bicycle and it's the

wrong way around Option a is also an option a

uses new to declare the subclass bicycle exist but the

question is asking us to define it similar words but

two very different things A declaration simply says something exists

but doesn't describe what the class or function actually does

The question was asking us to define the class Instead

option b and c use the word super rather than

extends which isn't proper syntax whatsoever So that just leaves

us with d which has both the correct syntax and 00:02:00.796 --> [endTime] the classes in their proper order They were walking