DevelopmentJavaDoctor's Appointment

Under construction

Background

A specialist doctor has requested a personalised booking system for his surgery with the following requirements and specifications. Your task is to create this system accordingly. The first version of the application uses a command line (console application). The second version will use the java SWING package for the graphic user interface. We are required to use collections not Array’s to maintain any information lists. The selection of appropriate collection types is an important step in the design process. The application takes bookings for one week only Monday to Friday 8:00 am to 5:00 pm with one hour reserved for lunch between 12:00 to 1:00. Each consultation is to be booked as ten minutes with options for patients to book two ten minute slots consecutively. The price of a consultation for a ten minute slot is $45.50. Unless the patient is from a referring doctor in which case the consultation price is $75.00 per ten minute slot.

Data storage

At the start of the application we pass the path and the file name of the bookings and referring doctors file from the command line. These files should are read by the application to initialise the current bookings since the last application shutdown.The bookings file have this format:
Day, Time, patient’s last name, patient’s first name, referring doctor ID

Referring doctor file contains details of the doctors that have referred their details for
consultation. The referring doctors file has this format:
Doctor ID, doctor’s last name, doctor’s first name, date of the referral

Options

Console version

Controller

		//Get two file names from command line.
        if (args.length != 2) {
        	System.err.println("Input file(s) missing. Please specify the booking's\n" +
        			"and/or the doctors referral file.");
            System.err.println("Usage: java DoctorAppointments bookings'file doctors'file");
            System.exit(1);
        }	
    
        bookings = new File (args[0]);	// the that contains the previous bookings
        docs = new File(args[1]);		// the referral doctors' file
        err = new File(errorsFileStr);	// the errors' file
        
        //Check if the files exist
        if (!bookings.exists()){
            System.err.println("The file "+args[0]+" does not exist!");
            System.exit(1);
        }
        if (!docs.exists()){
            System.err.println("The file "+args[1]+" does not exist!");
            System.exit(1);
        }
        if (!err.exists()){
            System.err.println("The file "+errorsFileStr+" does not exist!");
            System.exit(1);
        }
        //Initialize
		DoctorAppointments app = new DoctorAppointments(bookings, docs, errorsFileStr);
		
		// wait for user input
		app.printStartApp();
		
		BufferedReader std = new BufferedReader( 
		        new InputStreamReader( System.in ) );
		while ((option = std.readLine()) != null) {
			
			if (option.equalsIgnoreCase("X")) {
				System.out.println( "Thanks for using this application");
				app.save();
				System.exit(0);
			}
			else if (option.equalsIgnoreCase("A"))
				app.addBooking (std);
			else if (option.equalsIgnoreCase("D"))
				app.deleteBooking(std);
			else if (option.equalsIgnoreCase("F"))
				app.showFreeBookings(std);
			else if (option.equalsIgnoreCase("R"))
				app.showReferralDoctors(std);
			else if (option.equalsIgnoreCase("L"))
				app.showAllPatients(std);
			else if (option.equalsIgnoreCase("RP"))
				app.showReferralDoctorsPatient(std);
			else if (option.equalsIgnoreCase("E"))
				app.showErrors(std);
			else {
				System.out.println( "The option "+ option + " is not recognized");
					

The method starts by checking the input arguments for the names of the two files needed for intialization. We then check if the files exist, and create our man controller (DoctorAppoinments). The application then waits for user input from the command line as show below

Adding a booking

If the user enters "A", the control invokes the method addBooking (...) to service this request