Update AssessmentPartThree.java

src/AssessmentPartThree.java

-
 public class AssessmentPartThree {
 
 	// The simplest form of encryption is the rotation cipher (also known as Caeser's Cipher)
@@ -17,16 +16,64 @@ public class AssessmentPartThree {
 		 // Lower case characters remain lower case, upper case remain upper case
 		 // Any other characters are returned unchanged
 		 
-		 return 'a';
+		 char[] alphabet = {'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'}; // creates an array which has each letter of the alphabet
+	 int letterPlace = 0; //creates an int and the value is 0
+	 
+	 theChar = Character.toLowerCase(theChar); //makes theChar equal to the lowercase value of theChar
+	 boolean upperCase = Character.isUpperCase(theChar); // makes it equal to the uppercase value of theChar
+	
+	 if (Character.isLetter(theChar))
+	 {
+		 if (theOffset < 0) 
+		 {
+			 theOffset = theOffset + 26; 
+		 }
+		 if (theOffset > alphabet.length) // if the value of theOfset is greater than  the length of the string alphabet 
+		 {
+			 theOffset = theOffset - 26;
+		 }
+		 else 
+		 {
+			 theChar = alphabet[theOffset];
+		 }
+	 }
+	 else
+	 {
+		 return theChar; 
+	 }
+	 for (int i = 0 ; i < alphabet.length; i++) // creates a 'for' loop that runs as long as 'i' is less than the length of the array string alphabet
+	 {
+		 if (theChar == alphabet[i]) 
+		 {
+			 theOffset = theOffset + i; 
+		 }
+	 } 	 
+ 
+ if (upperCase) 
+ {
+	 theChar = Character.toUpperCase(theChar); //makes thechar equal to the uppercase value of thechar
+ }
+ return theChar;
 	 }
 	 
 	 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";
+		String output = "";
+		
+		for (char letter : theMessage.toCharArray()) //creates a 'for' loop that iterates the char "letter" through theMessage.tochararray 
+		{
+			output = output + letter; 
+			
+			
+			letter = enryptedCharacter( letter, theOffset); // makes letter equal to the amount which has been obtained while running theMessgae through the encrypted character method above
+	
 		}
 		 
+		 return output; 
 	 }
+}