Recursive Character Search and Destroy

I receive a string, and I want to remove any 'a', 'b' and 'c' characters, in a recursive way.

How do I do this in C and Java?

Thanks

in java.

    public static String tehMassRemoval(char a, char b, char c, String s)
    {
        for(int i = 0; i<s.length(); i++)
        {
            if (s.charAt(i) == a || s.charAt(i) == b || s.charAt(i) == c)
            {
                s = tehMassRemoval(a,b,c,(s.substring(0, i) + s.substring(i+1)));
            }

        }
        return s;
    }