Possible loss of precision; extracting char from string

Posted by Troy on Stack Overflow See other posts from Stack Overflow or by Troy
Published on 2010-03-09T03:00:38Z Indexed on 2010/03/09 3:06 UTC
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java

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char

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string

I am getting a string from the user and then doing some checking to make sure it is valid, here is the code I have been using;

char digit= userInput.charAt(0) - '0';

This had been working fine until I did some work on another method, I went to compile and have been receiving a 'possible loss of precision' error since then.

What am I doing wrong?

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