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Thread: Beginner question on Two Terms (Scanner and Double)

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    Default Beginner question on Two Terms (Scanner and Double)

    Hi guys/gals,

    I understand that there are tons of books out there, most of which are written very clearly. However, while I prowl through Liang and various searches on Google, I haven't been able to get a really clear answer on this query:

    I realize (correct me if I'm wrong!) that keywords like Double and Scanner act like containers for various values... what exactly is the difference? What, in fact, is a 'class'? A de facto container?

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    Super Moderator Norm's Avatar
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    Default Re: Beginner question on Two Terms (Scanner and Double)

    You should do some reading about Java programming to get a bigger picture of how it fits together.

    Two resources:
    http://docs.oracle.com/javase/tutori...ybigindex.html
    http://docs.oracle.com/javase/8/docs/api/index.html


    keywords like Double and Scanner
    Double and Scanner are the names of classes. They are not keywords.
    If you don't understand my answer, don't ignore it, ask a question.

  3. The Following User Says Thank You to Norm For This Useful Post:

    sdmazarin (August 28th, 2019)

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    Default Re: Beginner question on Two Terms (Scanner and Double)

    Okay, thanks Norm... you've directed me to things I'll look at more closely. I'm still curious in my early forays in coding about why Double and Scanner are used in certain circumstances when, to a neophyte, it seems like they could be used interchangeably.

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    Super Moderator Norm's Avatar
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    Default Re: Beginner question on Two Terms (Scanner and Double)

    You need to read the API doc (at the second link I posted) for those two classes to see what they do.
    If you don't understand my answer, don't ignore it, ask a question.

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