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Thread: Trying to crunch a date to a single digit

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    Default Trying to crunch a date to a single digit

    An example of what I'm trying to do is I enter the date 12 / 25 / 1984

    I need to add every digit like 1+2+2+5+1+9+8+4
    which would equal 32, but i need to keep adding the digits until I get a single digit answer

    I do not know how to separate 12 into 1 + 2 or 1984 into 1+9+8+4


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    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Trying to crunch a date to a single digit

    Think about it: if you have 12, how do you get the '1' out of the "tens" place? It's almost exactly the same way you get the '1' out of "1984" from the "thousands" place.

    After you get that, how do you isolate the rest of the number? Do you know what the modulus operator is?

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    Default Re: Trying to crunch a date to a single digit

    What formart is the date in, is it a String?

    if it's a String what you want to do is remove all of the forward slashes, and then parse each char one by one.

    String date = "12/25/1984"
    date = date.replace("/","")
    int dateTotal = 0;
    for (int j=0; j < date.length; j++) 
       dateTotal += Integer.parseInt(date.charAt(j));
    Last edited by Brt93yoda; October 15th, 2010 at 12:14 AM.

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    Default Re: Trying to crunch a date to a single digit

    yes i know what the modulus is and I am pretty sure I know how to do it now, thank you

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    Default Re: Trying to crunch a date to a single digit

    Quote Originally Posted by KevinWorkman View Post
    Think about it: if you have 12, how do you get the '1' out of the "tens" place? It's almost exactly the same way you get the '1' out of "1984" from the "thousands" place.

    After you get that, how do you isolate the rest of the number? Do you know what the modulus operator is?
    NOOOOOOO!!!!!!! I had a cool algorithm

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    Default Re: Trying to crunch a date to a single digit

    Quote Originally Posted by Brt93yoda View Post
    NOOOOOOO!!!!!!! I had a cool algorithm
    Sorry. Hooray for spoonfeeding, I guess.

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    Default Re: Trying to crunch a date to a single digit

    Quote Originally Posted by Brt93yoda View Post
    NOOOOOOO!!!!!!! I had a cool algorithm
    Complete with a nonexistant remove(...) method.

    db

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    Default Re: Trying to crunch a date to a single digit

    Quote Originally Posted by Darryl.Burke View Post
    nonexistant
    db
    Irony. I always forget that remove is on MSL not Java.

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