changed to correct assesmment part

src/AssessmentPartThree.java

+import java.util.ArrayList;
 
 public class AssessmentPartThree {
 
@@ -10,23 +11,83 @@ public class AssessmentPartThree {
 	
 	 public char enryptedCharacter(char theChar, int theOffset)
 	 {
-		 // 05 - encryptedCharacter
-		 // Complete this method so that it returns the encrypted character for
-		 // theChar when and offset of theOffset is used
-		 // So if theChar='m' and theOffset is 3 the method will return 'p'
-		 // Lower case characters remain lower case, upper case remain upper case
-		 // Any other characters are returned unchanged
-		 
-		 return 'a';
+		 
+		 ArrayList<Character> alphabet = new ArrayList<Character>(); //Create arraylist to store alphabet
+		 	
+		 alphabet.add('a'); //add a to end of list
+		 alphabet.add('b'); //add b to end of list
+		 alphabet.add('c'); //repeat for all of alphabet
+		 alphabet.add('d');
+		 alphabet.add('e');
+		 alphabet.add('f');
+		 alphabet.add('g');
+		 alphabet.add('h');
+		 alphabet.add('i');
+		 alphabet.add('j');
+		 alphabet.add('k');
+		 alphabet.add('l');
+		 alphabet.add('m');
+		 alphabet.add('n');
+		 alphabet.add('o');
+		 alphabet.add('p');
+		 alphabet.add('q');
+		 alphabet.add('r');
+		 alphabet.add('s');
+		 alphabet.add('t');
+		 alphabet.add('u');
+		 alphabet.add('v');
+		 alphabet.add('w');
+		 alphabet.add('x');
+		 alphabet.add('y');
+		 alphabet.add('z');
+		 
+		 Boolean upper = false; //create a boolean that will be used later
+		 
+		 if(Character.isUpperCase(theChar) == true) { //if the letter needing encryption is upper case then..
+			 upper = true; //set upper boolean to true
+		 }
+		 
+		 if(theChar == ' ') { //if the character is a space
+			 return ' '; //return a space (to keep words separate)
+		 }
+		 if(Character.isDigit(theChar)) { //if the character is a number
+			 return theChar; //return it as a number (so it doesn't encrypt numbers)
+		 }
+		 
+		 theChar = Character.toLowerCase(theChar); //convert all chars to lowercase before they get encrypted
+		 int position = alphabet.indexOf(theChar); //store the array position of the char
+		 int encrypted = position + theOffset; //the encrypted version of the letter is the current pos + the shift/offset
+		 if(encrypted < 0) { //if new position is lower than 0 (off the array)
+			 encrypted = encrypted + 26; //add 26 to it so it loops
+		 }
+		 if(encrypted > 26) { //if new position is higher than 26 (off the array)
+			 encrypted = encrypted - 26; //take away 26 so it loops
+		 }
+		 char end = alphabet.get(encrypted); //use the index to return the character in that position
+ 
+		 if(upper) { //if upper was true...
+			end = Character.toUpperCase(end); //put the encrypted character back to uppercase
+		 }
+		 
+		 return end; //return the encrypted letter.
+		 
 	 }
 	 
+	 
 	 public String encryptedString(String theMessage, int theOffset)
 	 {
-		 // 06 - encryptedMessage
-		 // Complete this method so that it uses encryptedCharacter to 
-		 // return the encrypted version of theMessage using theOffset
 		 
-		 return "Encryptred message";
+		 
+		 char[] letters = theMessage.toCharArray(); //Convert theMessage to a character Array
+		 String encrypted = ""; //Create an empty string
+		 
+		 
+		 for(int i = 0; i < letters.length; i++) { //for 0 to length of the char array -1
+			 encrypted += enryptedCharacter(letters[i], theOffset); //apply encryptedCharacter function to each letter by the new offset
+		 }
+		 
+		 return encrypted; // 
+		 
 	 }
 	
 }