Fixed the error when the user clicks on empty path fields in the flight path list view

src/main/java/seng202/group9/Core/FlightPath.java

@@ -28,7 +28,7 @@ public class FlightPath {
 	}
 
 	/**
-	 * COnstructor for FlightPath from dataset add later the ID needs to be set from database.
+	 * Constructor for FlightPath from dataset add later the ID needs to be set from database.
 	 * @param departureAirport
 	 * @param arrivalAirport
 	 */

src/main/java/seng202/group9/GUI/FlightRDController.java

@@ -92,6 +92,7 @@ public class FlightRDController extends Controller {
             flightPathListView.setOnMouseClicked(new EventHandler<MouseEvent>() {
                 public void handle(MouseEvent event) {
                     String flightPathDisplayNameClicked = flightPathListView.getSelectionModel().getSelectedItem();
+                    if (flightPathDisplayNameClicked!=null) {
                         String[] segments = flightPathDisplayNameClicked.split("_");
                         String pathIdClicked = segments[0];
 
@@ -103,6 +104,7 @@ public class FlightRDController extends Controller {
                         flightPaths = theDataSet.getFlightPaths();
                         ArrayList<FlightPoint> flightPoints = flightPaths.get(currentPathIndex).getFlight();
                         flightTableView.setItems(FXCollections.observableArrayList(flightPoints));
+                    }
 
                 }
             });
@@ -246,6 +248,9 @@ public class FlightRDController extends Controller {
         flightPathListView();
     }
 
+    /**
+     * Function for the 'Move Up' right click option on the points in the flight table.
+     */
     public void movePointUp(){
         FlightPoint toMove = flightTableView.getSelectionModel().getSelectedItem();
         int toMoveIndex = flightTableView.getSelectionModel().getSelectedIndex();
@@ -258,9 +263,11 @@ public class FlightRDController extends Controller {
         }
         updateTable(currentPathIndex);
         updatePaths();
-
     }
 
+    /**
+     * Function for the 'Move Down' right click option on the points in the flight table.
+     */
     public void movePointDown(){
         FlightPoint toMove = flightTableView.getSelectionModel().getSelectedItem();
         int toMoveIndex = flightTableView.getSelectionModel().getSelectedIndex();
@@ -287,6 +294,9 @@ public class FlightRDController extends Controller {
         flightTableView.refresh();
     }
 
+    /**
+     * Updates the flight path list view so that it displays the correct names for the paths
+     */
     private void updatePaths(){
         try {
             flightPathListView.getItems().clear();

src/main/java/seng202/group9/GUI/FlightSummaryController.java

@@ -158,6 +158,7 @@ public class FlightSummaryController extends Controller {
             flightPathListView.setOnMouseClicked(new EventHandler<MouseEvent>() {
                  public void handle(MouseEvent event) {
                      String flightPathDisplayNameClicked = flightPathListView.getSelectionModel().getSelectedItem();
+                     if (flightPathDisplayNameClicked!=null) {
                          String[] segments = flightPathDisplayNameClicked.split("_");
                          String pathIdClicked = segments[0];
 
@@ -165,6 +166,7 @@ public class FlightSummaryController extends Controller {
                                  .get(Integer.parseInt(pathIdClicked)));
                          currentPathId = Integer.parseInt(pathIdClicked);
                      }
+                 }
             });
             flightPathListView.setItems(flightList);
         } catch (Exception e) {