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thanks for the reply. I'm just starting out with recursion and was wondering if you could give me a bit more info on this part of the code:


return 1 + freq(s.substring(1, s.length()), c);
I get...

Having a bit of a problem with the recursive part of this case.

here's what I have so far :

public int freq (String S, Char C) {
if (S.length () == 0) return (0); // base case
else return //...