java - Processing a charArray - what happens here? -


while reading through questions here , trying understanding code came interesting question , me interesting solution jens-peter haack. see here: how implement independent cells in javafx? - don't understand lines of code. can please explain in detail happens here:

case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':     count = 10 * count + (c - '0');

unfortuneatly haven't found way ask author directly.

it's part of switch-case statement. seems switch(c) somewhere before code. means if c character expressing digit (from '0' '9'), update count: multiply 10, add digit. subtracting '0' necessary convert character (like '1') number 1.


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