Use string methods to find and count vowels in a string?

Question

I have this problem for homework (I\'m being honest, not trying to hide it at least) And I\'m having problems figuring out how to do it.

Given the following declarat

Answer 1

Improving on an above answer to consider vowels in caps:

System.out.println(s.length() - s.toLowerCase().replaceAll("a|e|i|o|u|", "").length());