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[java] reading digits from an int one at a time

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[%]mod operator returns the remainder

you can do something like this.
For example if you have a no. say 123, then 123 % 10,

1. 123%10 -> you get 3

now quotient 12,
2. 12%10 -> you get 2

now quotient 1
3. 1%10 -> you get 1

Then you can get each digits of the number.


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