ShmoopTube

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Sorry And here's your shmoop to use your brought to

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you by object oriented programming It's got class that's really

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funny the computer science majors around us or just rolling

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on the floor right All right you would like to

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define a subclass called bicycle as part of your ongoing

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efforts to reduce your carbon footprint Which of the following

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is a correct way to begin writing your class carbon

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footprint like tires All right And here the potential answers

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public clan All right well the key to answering this

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question is knowing the syntax of defining a subclass in

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java But what is a sub class submarine class Well

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

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

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

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

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

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Got it all right Well this idea is known as

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

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to make your distant ninety eight year old relatives think

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

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

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know for a fact that bicycle is intended to be

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a subclass of vehicle It hangs down like fruit on

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a tree so he is certainly out He creates a

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

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wrong way around Option a is also an option a

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uses new to declare the subclass bicycle exist but the

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question is asking us to define it similar words but

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two very different things A declaration simply says something exists

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

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The question was asking us to define the class Instead

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option b and c use the word super rather than

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

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

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