diff --git a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/AddWordController.java b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/AddWordController.java
index bba7db5..685dc03 100644
--- a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/AddWordController.java	
+++ b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/AddWordController.java	
@@ -38,6 +38,10 @@ import uk.ac.aber.cs22120.group20.json.DictionaryEntry;
  */
 public class AddWordController extends SharedCodeController {
 
+   // /////////////////// //
+   // Instance variables. //
+   // /////////////////// //
+
    @FXML
    private TextField welsh;
    @FXML
@@ -45,12 +49,15 @@ public class AddWordController extends SharedCodeController {
    @FXML
    private ComboBox<String> wordType;
 
+   // //////// //
+   // Methods. //
+   // //////// //
+   
    /**
     * Gets the value from the welsh text field
     *
     * @return welsh
     */
-
    public TextField getWelsh() {
       return welsh;
    }
@@ -60,7 +67,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @return english
     */
-
    public TextField getEnglish() {
       return english;
    }
@@ -86,7 +92,6 @@ public class AddWordController extends SharedCodeController {
     * @see Application
     * @see DictionaryEntry
     */
-
    @FXML
    protected void addButtonClick(ActionEvent actionEvent) {
       DictionaryEntry.wordTypeEnum trueWordType;
@@ -172,7 +177,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addChardd(ActionEvent actionEvent) {
       welsh.appendText("dd");
    }
@@ -182,7 +186,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addCharff(ActionEvent actionEvent) {
       welsh.appendText("ff");
    }
@@ -192,7 +195,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addCharng(ActionEvent actionEvent) {
       welsh.appendText("ng");
    }
@@ -202,7 +204,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addCharll(ActionEvent actionEvent) {
       welsh.appendText("ll");
    }
@@ -212,7 +213,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addCharph(ActionEvent actionEvent) {
       welsh.appendText("ph");
    }
@@ -222,7 +222,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addCharrh(ActionEvent actionEvent) {
       welsh.appendText("rh");
    }
@@ -232,7 +231,6 @@ public class AddWordController extends SharedCodeController {
     *
     * @param actionEvent action event for the button click
     */
-
    public void addCharth(ActionEvent actionEvent) {
       welsh.appendText("th");
    }
diff --git a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/MatchTheMeaningController.java b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/MatchTheMeaningController.java
index 85b68c5..7df1d6f 100644
--- a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/MatchTheMeaningController.java	
+++ b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/MatchTheMeaningController.java	
@@ -39,12 +39,19 @@ import java.util.*;
 
 public class MatchTheMeaningController extends SharedCodeController {
 
+   // //////////////// //
+   // Class variables. //
+   // //////////////// //
 
    public static ArrayList<DictionaryEntry> answer =new ArrayList<>();
+
+   // /////////////////// //
+   // Instance variables. //
+   // /////////////////// //
+
    private ArrayList<Integer> orderList = new ArrayList<>(Arrays.asList(0,1,2,3));
    private boolean isEnglish = AssessmentGenerator.isEnglish;
 
-
    @FXML
    private ComboBox<String> word1;
 
@@ -87,7 +94,9 @@ public class MatchTheMeaningController extends SharedCodeController {
    @FXML
    private Label WrongAnswer;
 
-
+   // //////// //
+   // Methods. //
+   // //////// //
 
    /**
     * Set chosen words from dictionary on the scene.
diff --git a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/SixMeaningsController.java b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/SixMeaningsController.java
index e7c76bf..dba2b9f 100644
--- a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/SixMeaningsController.java	
+++ b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/SixMeaningsController.java	
@@ -38,13 +38,21 @@ import java.util.*;
 
 public class SixMeaningsController extends SharedCodeController {
 
-   private ArrayList<DictionaryEntry> wordSet = new ArrayList<>();
+   // //////////////// //
+   // Class variables. //
+   // //////////////// //
+
    public static ArrayList<DictionaryEntry> allQuestions = new ArrayList<>();
+
+   // /////////////////// //
+   // Instance variables. //
+   // /////////////////// //
+
+   private ArrayList<DictionaryEntry> wordSet = new ArrayList<>();
    private ArrayList<Integer> orderList = new ArrayList<>(Arrays.asList(0, 1, 2, 3, 4, 5));
    private String wordCounterpart;
    private boolean isEnglish = AssessmentGenerator.isEnglish;
 
-
    @FXML
    private Text correctAnswer;
 
@@ -72,6 +80,10 @@ public class SixMeaningsController extends SharedCodeController {
    @FXML
    private Text possibleAnswer6;
 
+   // //////// //
+   // Methods. //
+   // //////// //
+
    @FXML
    void answer1(MouseEvent event) {
       wordCounterpart = possibleAnswer1.getText();
diff --git a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/TranslationController.java b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/TranslationController.java
index ecce610..99de1b5 100644
--- a/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/TranslationController.java	
+++ b/src/Welsh Vocabulary Tutor/src/main/java/uk/ac/aber/cs22120/group20/javafx/TranslationController.java	
@@ -24,9 +24,17 @@ import uk.ac.aber.cs22120.group20.selfassessment.Question;
  *
  */
 public class TranslationController  extends SharedCodeController{
-    private ArrayList<DictionaryEntry> practiceList = new ArrayList<>();
+
+    // //////////////// //
+    // Class variables. //
+    // //////////////// //
+
     public static DictionaryEntry answer = new DictionaryEntry();
 
+    // /////////////////// //
+    // Instance variables. //
+    // /////////////////// //
+
     /**
      * Represents the word that will be randomly chosen from the practiceList.
      */
@@ -51,7 +59,9 @@ public class TranslationController  extends SharedCodeController{
 
     Random rand = new Random();
 
-
+    // //////// //
+    // Methods. //
+    // //////// //
 
     /**
      * Loads the test for the first time, filling the practice list with words from the dictionary,