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Thread: 9^2=81=8+1 How do I do this?

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    Exclamation 9^2=81=8+1 How do I do this?

    Take a no, eg 9. Square it.
    92=81

    Now add the digits

    8+1= 9 (Which is the original number)

    How do I do this using Functions?
    It should work for any number. 9, 55, 395 Any.

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    Default Re: 9^2=81=8+1 How do I do this?

    Hello siddharthbandhu!
    What have you done so far? Do you have the logic for what you are trying to do?

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    Default Re: 9^2=81=8+1 How do I do this?

    To get the digits of a number look at using the % and / operators
    If you don't understand my answer, don't ignore it, ask a question.

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    Junior Member Tha Boss's Avatar
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    Default Re: 9^2=81=8+1 How do I do this?

    you can use .length() to determine how many digits and .charAt() to isolate the numbers and add them using a for loop.