Third Part Complete

src/AssessmentPartThree.java

@@ -17,7 +17,47 @@ public class AssessmentPartThree {
 		 // Lower case characters remain lower case, upper case remain upper case
 		 // Any other characters are returned unchanged
 		 
-		 return 'a';
+		 if (Character.isDigit(theChar) || Character.isWhitespace(theChar)) {
+			 return theChar;
+		 }
+		 
+		 char[] letters = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
+		 
+		 if (Character.toUpperCase(theChar) == theChar) {
+			 
+			 for (int i=0; i<letters.length;i++) {
+				 letters[i] = Character.toUpperCase(letters[i]);
+			 }
+			 
+		 }
+		 
+		 int index = -1;
+		 for (int i=0; i<letters.length; i++) {
+			 if (theChar == letters[i]) {
+				 index = i;
+			 }
+		 }
+		 
+		 if (index != -1) {
+			 
+			 if (((index+theOffset) <= letters.length) && (((index + theOffset) >= 0))) {
+				 index = index + theOffset;
+			 }
+			 else if ((index + theOffset) < 0) {
+				 index = letters.length + (index + theOffset);
+			 }
+			 else {
+				 index = (index + theOffset) - letters.length;
+			 }
+			 
+		 }
+		 
+		 if (index == -1) {
+			 return theChar;
+		 }
+		 else {
+			return letters[index]; 
+		 }
 	 }
 	 
 	 public String encryptedString(String theMessage, int theOffset)
@@ -25,8 +65,15 @@ public class AssessmentPartThree {
 		 // 06 - encryptedMessage
 		 // Complete this method so that it uses encryptedCharacter to 
 		 // return the encrypted version of theMessage using theOffset
+		 String message = "";
+		 
+		 for (int i=0; i<theMessage.length();i++) {		 		 
+			 char current = theMessage.charAt(i);
+			 char newChar = enryptedCharacter(current, theOffset);
+			 message = message + newChar;		 
+		 }
 		 
-		 return "Encryptred message";
+		 return message;
 	 }
 	
 }