Significant classes in desktop

CrawlifyController - This is the Controller superclass, it contains common instance variables, such as the 'master' list of pubs. Methods include getters and setters and a method to display an alert box with a given message.

StartController - Controls the introductory screen with two buttons; one to create a new location and one to select an existing location. Paired with start.fxml.

ExistingLocationController - Controls a screen that displays a list of locations that already exist in the master list, which a user can select. Paired with existingLocation.fxml.

CreateLocationController - Controls a screen that allows the user to type in a new location, using a method to check if it already exists and creates the necessary objects. Paired with createLocation.fxml.

PubListController - Controls a screen that displays existing pubs in a list, allowing the user to delete a pub or add another pub. Paired with pubList.fxml.

NewPubController - Controls a screen that displays a form for the end-user to fill in details about a pub that they want added to a list, said list either having been instantiated previously or loaded in. Paired with newPub.fxml.

AddImageController - Controls a screen that asks user to enter URL of an image, and displays that image, allowing user to select whether to add it to the pub.

SaveAndCloseController - Controls the final screen of the application, where the user can choose to save or cancel any changes, and then either close the application or return to StartController.