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5.8: Vocabulary

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    21121
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    collection:
    An object that contains other objects, or more specifically, one of the objects in the Java library, like ArrayList, that contains objects.
    inheritance:
    The ability to define a new class that has the same instance variables and methods of an existing class.
    subclass:
    A class that inherits from, or extends, an existing class.
    superclass:
    An existing class that is extended by another class.
    wrapper method:
    A method that calls another method without doing much additional work.
    bottom-up development:
    A way of developing programs by identifying simple pieces, implementing them, and then assembling them into more complex algorithms.
    HAS-A:
    A relationship between two classes where one class “has” an instance of another class as one of its attributes.
    IS-A:
    A relationship between two classes where one class extends another class; the subclass “is” an instance of the superclass.

    This page titled 5.8: Vocabulary is shared under a CC BY-NC-SA 3.0 license and was authored, remixed, and/or curated by Allen B. Downey (Green Tea Press) .

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