final commit attempt 2

src/AssessmentPartFour.java

@@ -10,35 +10,35 @@ public class AssessmentPartFour {
 	List<String> morseCode = new ArrayList<String>();
 	
 	public int loadMorseFromFile(String filename) 
-	{Scanner scan;
-		morseCode.clear();
-		File file = new File(filename);
-		
-		try {
-			 scan = new Scanner(file);	
+	{Scanner scan; //Defines the scanner that will be used for reading the file
+		morseCode.clear(); //Clears the variable that stores the file so that if the program is rerun, it doesn't keep the old file
+		File file = new File(filename); //Gets the file that will be translated and stores it in a variable		
+		try { //This try is used for handling if there is an error reading the file
+			 scan = new Scanner(file);	//Reads the file
 		}
-		catch(FileNotFoundException e)
+		catch(FileNotFoundException e) //A condition that occurs if the file isn't found
 		{
 			System.out.println("Error reading file, exiting program");
 			return -1;
 		}
 		
-		String line;
+		String line; //Will be used for storing an individual line from the file
 		while(scan.hasNextLine())
 		{
 			line = scan.nextLine();
-			morseCode.add(line);
+			morseCode.add(line); //Adds the line to an arraylist
 		}
-		return morseCode.size();		
+		return morseCode.size(); //Returns the length of the arraylist
 	}
 	
 	public String translateMorse()
 	{
-		String translatedCode = "";
-		for(int i = 0; i < morseCode.size(); i++)
+		String translatedCode = ""; //A string that will be used to hold the translated message
+		for(int i = 0; i < morseCode.size(); i++)//Loops once for every line in the code
 		{
-			char translatedChar = ' ';
-			switch(morseCode.get(i))
+			char translatedChar = ' '; //An individual character that will be translated
+			switch(morseCode.get(i)) //A switch statement that compares the line to every letter in the alphabet  
+									//in morse code and assigns that letter to a variable
 			{
 			case".-": translatedChar = 'a';
 			break;
@@ -93,7 +93,7 @@ public class AssessmentPartFour {
 			case"--..": translatedChar = 'z';
 			break;
 			}
-			translatedCode = translatedCode + translatedChar;
+			translatedCode = translatedCode + translatedChar; //Adds the translated character to the final message string
 		}
 		return translatedCode;
 	}