title: adding string to certain char
body: <p>doing a lab for class                   ( cannot use ARRAY     )<strong>**</strong>
  its a langue converter and i have to put 'ub' after every vowel 
  i was wondering how i could do this WITHOUT AN ARRAY 
  so far i have  but it just adds "ub" after the second letter in a string </p>
  
  <pre><code>private static String toUbbi(String word ) {            
      String set = " ";
      if (Vowel (word)){
          set=  word.substring(0)+ "ub"+word.substring(1) ;
          set = word.substring(0,1)+ "ub"+word.substring(1);
      }
      return set;         
  }     
  
  private static boolean Vowel(String word ) {             
  String[] vowels ={ "a", "e", "i", "o", "u", "ue"} ; 
      //char x = word.charAt(0);
      return (vowels.length !=-1);     
  } 
  </code></pre>