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  1. #1
    newbie101 is offline Member
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    Aug 2011
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    Default "implements from Runnable"

    From the way I understand it, interfaces are just lists of methods that need to be defined elsewhere.However, when people "implements Runnable", they have to create a method called "run()", but then, usually, the body is empty, so, what does implementing from Runnable do if there is no body? Is my understanding of interfaces wrong?

  2. #2
    Tolls is offline Moderator
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    Apr 2009
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    If the body is empty then that Runnable is going to do nothing, so is a little pointless.
    Your first sentence is pretty much correct, though. An interface is essentially a contract that an implementing class agrees to fulfill.

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