// Tyler Rigsby, CSE 142
// Example boolean methods involving testing Strings and chars for vowels
public class Vowels {
    public static void main(String[] args) {
        System.out.println(isLowercaseVowel('a'));
        System.out.println(isLowercaseVowel('c'));  
        
        System.out.println("alphabet: " + hasLowercaseVowel("alphabet"));
        System.out.println("crwth: " + hasLowercaseVowel("crwth"));
        System.out.println("hello: " + hasLowercaseVowel("hello"));
    }
    
    // Takes a String as a parameter and returns true if it has a lowercase vowel
    // or false otherwise
    public static boolean hasLowercaseVowel(String text) {
        for (int i = 0; i < text.length(); i++) {
            char c = text.charAt(i);
            if (isLowercaseVowel(c)) { // bad boolean zen: isLowercaseVowel(c) == true
                return true;
            }
        }
        return false;
    }
    
    // Takes a char as a parameter and returns true if it is a vowel, false otherwise
    public static boolean isLowercaseVowel(char c) {
        boolean isVowel = c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u';
        return isVowel;
        /* bad boolean zen:
        if (isVowel) {
            return true;
        } else {
            return false;
        }*/
    }
}