Not generating all set of codes

[scoobie]

Hello,
I have tried your code, and I´ve noticed that he was missing some specific codes.
To test I have changed the minimum character to "a" and maximum to "z", and we can notice that is not generating a hash for a and starting at "b" when the value is "az", next one should be "aa" but is again "ab". If I move the increment guess after the comparison of the hash, the problem is on the "Z".

[ghost]

Noticed the same thing. Becomes even more apparent when min is '0' and max is '1'. I think the problem is in the increment function and can be fixed by replacing
guess[x+1] = min_char_value;
with something like

for(int m = x+1;m<guess.length;m++) {
    guess[m] = min_char_value;
}

at least that's how I got it working