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

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?

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.

Code java:

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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));

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

Quote:

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Originally Posted by KevinWorkman

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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NOOOOOOO!!!!!!! :( I had a cool algorithm

Quote:

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Originally Posted by Brt93yoda

NOOOOOOO!!!!!!! :( I had a cool algorithm

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Sorry. Hooray for spoonfeeding, I guess. :-/

Quote:

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Originally Posted by Brt93yoda

NOOOOOOO!!!!!!! :( I had a cool algorithm

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Complete with a nonexistant remove(...) method.

db

Quote:

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Originally Posted by Darryl.Burke

nonexistant
db

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Irony. I always forget that remove is on MSL not Java.