// code to help read the airport-data.txt

    BufferedReader r;
    try {
    	InputStream is = new FileInputStream("airport-data.txt");
	r = new BufferedReader(new InputStreamReader(is));
    } catch (IOException e) {
	System.out.println("IOException while opening airport-data.txt\n" + e);
	return;
    }
    try {
	String nextline = r.readLine();
	StringTokenizer st = new StringTokenizer(nextline);
    	int numAirports = Integer.parseInt(st.nextToken());
	// numAirports is the number of airports, use it as needed
	for (int i = 0; i < numAirports; i++){
	     nextline = r.readLine();
	     st = new StringTokenizer(nextline);
	     String airportCode = st.nextToken();
	     int gmtConv = Integer.parseInt(st.nextToken());

//      You now have all of the information stored in variables, namely
//      airportCode is the three letter acronym for that airport
//      gmtConv is the gmt offset that the GMTtime class needs
// 
//      You take it from here.

        }
    } catch (IOException e) {
	System.out.println("IOException while reading sequence from " +
				"airport-data.txt\n" + e);
     return;
    }


// code to help read flight-data.txt

    BufferedReader r;
    try {
    	InputStream is = new FileInputStream("flight-data.txt");
      	r = new BufferedReader(new InputStreamReader(is));
    } catch (IOException e) {
    	System.out.println("IOException while opening flight-data.txt\n" + e);
 	return;
    }
    try {
	String nextline = r.readLine();
        while (nextline != null && !nextline.trim().equals("")){ // not end of file or an empty line
	    StringTokenizer st = new StringTokenizer(nextline);
	    String airline = st.nextToken();
 	    int flightNum = Integer.parseInt(st.nextToken());
	    String departAirportCode = st.nextToken();
            int localDepartTime = Integer.parseInt(st.nextToken()); 
            boolean am = st.nextToken().equals("A"); 
	    String arriveAirportCode = st.nextToken();
	    int localArriveTime = Integer.parseInt(st.nextToken());
            am = st.nextToken().equals("A");
            nextline = r.readLine();

// 	    all the information about the flight has been read in.
//          I strongly recommend that you store the arrival and departure
//          times in your flight objects as GMTtime instances.
//          I think all of the variables are clear, but if not ask.
//          You take it from here.
	   }
       }
    } catch (IOException e) {
	System.out.println("IOException while reading sequence from " +
			 "flight-data.txt\n" + e);
      	return;
    }