tugas java no3

import java.util.Scanner;

public class No3 {
   public static void main(String[] args) {
       Scanner input1 = new Scanner(System.in);
       System.out.println("masukkan kalimat :");
       String kalimat = input1.nextLine();
       char[] kata = kalimat.toCharArray();
       char hurufDepan = kata[0];
       char hurufBelakang = kata[kata.length-1];
    
       for (int i = 0; i < kata.length; i++) {
           if(i == 0){
               continue;
           }
           else if (kata[i] == 'a') {
               kata[i] = hurufBelakang;
           }
           else if (kata[i] == 'i') {
               kata[i] = hurufBelakang;
           }
           else if (kata[i] == 'u') {
               kata[i] = hurufBelakang;
           }
           else if (kata[i] == 'e') {
               kata[i] = hurufBelakang;
           }
           else if (kata[i] == 'o') {
               kata[i] = hurufBelakang;
           }else if (i == kata.length-1){
               continue;
           }
       }

        kata[0] = hurufBelakang;
        kata[kata.length - 1] = hurufDepan;
       System.out.println(kata);
   }
}