Question

* Creates a string that displays the first position of the letters a, e, i, * o, and u in sentence. If a vowel is not located, it will report -1 as the * position. Hint: use indexOf to simplify things. * * * <pre> * findVowels ("appleapp") would return * The first position of a is 0. The first position of eis 4. * The first position of i is -1. * The first position of ois -1. * The first position of u is -1. * </pre> * * * @param sentence != null and lowercase * @return */ public static String findVowels (String sentence) return "TODO: Write the body of this method so the test passes.";

Answer 1

public class VowelIndices {

    public static String findVowels(String sentence) {
        return String.format(
                "The first position of a is %d.\n" +
                        "The first position of e is %d.\n" +
                        "The first position of i is %d.\n" +
                        "The first position of o is %d.\n" +
                        "The first position of u is %d.\n",
                sentence.indexOf('a'),
                sentence.indexOf('e'),
                sentence.indexOf('i'),
                sentence.indexOf('o'),
                sentence.indexOf('u'));
    }

    public static void main(String[] args) {
        System.out.println(findVowels("appleapp"));
    }
}

The first position of a is 0. The first position of e is 4. The first position of i is -1. The first position of o is -1. The first position of u is -1.