@@ -0,0 +1,364 @@
+class Collatz%0A%7B%0A    public static void main(String%5B%5D args)%0A    %7B%0A        System.out.println(%22Basic collatz fun - recursive Java function%22);%0A        r(15);%0A    %7D%0A%0A    private static int r(int n)%0A    %7B%0A        System.out.printf(%22%25d%25n%22, n);%0A        if (n %3C= 1)%0A            return 1;%0A        if (n%252 == 0)%0A            return r(n/2);%0A        return r((n*3)+1);%0A    %7D%0A%7D%0A

Add evil language, too