Recursion - 1 (countX) Java Solution || Codingbat.com

[SameenIslam]

I really appreciate your effort in going through these problems, super helpful!

[shriyanshagarwal]

I think this could also be written as:
public int countX(String str) {
if(str.equals("")) return 0;
else if(str.charAt(0)=='x') return 1+countX(str.substring(1));
else return countX(str.substring(1));
}