all methods written and all tests pass

LoopFun.java

               result = result + phrase.substring(firstSpaceIndex+1, firstSpaceIndex+2);
               phrase = phrase.substring(0,firstSpaceIndex) + phrase.substring(firstSpaceIndex+1);
               firstSpaceIndex = phrase.indexOf(" ");
-              System.out.print(result);
             }
           return result;
       }
        * @return the encrypted string by shifting each character by three character
        */
       public String encrypt(String word) {
-          return null;
+          String alphabet = "abcdefghijklmnopqrstuvwxyzabcde";
+          String codedWord = "";
+          for (int i=0; i<word.length(); i++) {
+            int alphaIndex = alphabet.indexOf(word.charAt(i));
+              codedWord += String.valueOf(alphabet.charAt(alphaIndex+3));
+            }
+          return codedWord;
       }
 }