How to extract single int digits from a String

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loris_p - 06 Jun 2007 13:53 GMT

Hi, I have a String containing numeric characters. I need to cycle on
this String extracting one int digit per-cycle.
Which method should I use?
Thanks.

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Andrew Thompson - 06 Jun 2007 14:09 GMT

>Hi, I have a String containing numeric characters. I need to cycle on
>this String extracting one int digit per-cycle.

String.substring()/String.charAt() then Integer.parseInt()
(in a loop, with appropriate try/catches)

>Which method should I use?

See above.

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Andrew Thompson
http://www.athompson.info/andrew/

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loris_p - 06 Jun 2007 14:20 GMT

Thank you very much :)

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Roedy Green - 15 Jun 2007 11:18 GMT

>Hi, I have a String containing numeric characters. I need to cycle on
>this String extracting one int digit per-cycle.
>Which method should I use?

a loop with string.charAt() gets you each char.

the fastest way to convert it to an int is to subtract '0'.
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Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

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