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Thread: Function of "extends"

  1. #1
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    Default Function of "extends"

    Java Programming question: What is the function of "extends" and when do we use it?
    I realise it it used when we want to incorporate methods that have already been stated in another class; that way we do not have to rewrite it again. But I do not understand when exactly to use "extends" as I can also call the other class just by instantiating that other class by the 'new' keyword so why bother using "extends" in the first place?

  2. #2
    Administrator copeg's Avatar
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    Oct 2009
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    Default Re: Function of "extends"

    Read about inheritance:
    What Is Inheritance? (The Java™ Tutorials > Learning the Java Language > Object-Oriented Programming Concepts)
    Inheritance (The Java™ Tutorials > Learning the Java Language > Interfaces and Inheritance)

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