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Got it, I'm so stupid and thanks much :D
it was in my if loop...I should have had variable u instead of j!

ok I used your help to do my program...I wrote it, but there is some problem in it that I can't figure out...
here is the summary of the problem:

let's say we have a 15 digits number ; we'll do...

thanks, didn't know about API doc!!!
what's the difference of using nextLong(radix) and nextLong()?
it says in the description at the bottom that : radix - the radix used to interpret the token as...

so, it means we can't get a long int from the user?! and we can't use it as an object?
In C it was easy we just used scanf, but in java...

basically I wanted to the user put in a 15 digit...

That is great...thanks a lot, I don't think I even need an array anymore!!! . I'm not really good working with string methods...not that professional yet lol

but let's say I made a Char array...I...

I guess what I actually need is a method that gets a long integer, and changes it into an array of integers :/
what Parse methods do is changing between strings and integers!

Hi all, I'm new to Java programming(and programming itself) and was looking for a website such this, to get some help once in a while and find some answers to my questions...I read the forum's...