XVokal

import java.util.Arrays;
import java.util.Scanner;

public class XVokal {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Text eingeben: ");
        String checkString = in.nextLine();
        StringBuilder builder = new StringBuilder();
        String[] vowels = new String[] { "a", "e", "i", "o", "u" };

        if (checkString != ""){
            String[] check = checkString.split("");
            for (String c : check){
                if (!Arrays.asList(vowels).contains(c.toLowerCase()) || c.equals(" ")){
                    builder.append("-");
                } else if (Arrays.asList(vowels).contains(c.toLowerCase()) || c.equals(" ")){
                    builder.append("X");
                }
            }
        }
        System.out.println(builder);
    }
}