Alphabet

char ch = 'a';
        while (ch <= 'z') {
            if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
                System.out.println(ch + " is a vowel");
            } else {
                System.out.println(ch + " is a consonant");
            }
            ch++;
        }
    }
}