[hardwired]

Code:

import java.util.ArrayList;
import java.util.List;
import javax.swing.JOptionPane;
 
public class FlightTest {
    static List<Flight> flights = new ArrayList<Flight>();

    public static void main(String[] args) {
        boolean keepGoing = true;
        
        while(keepGoing == true) {
            String[] options = { "enter flight data", "find a flight" };
            String choice = (String)JOptionPane.showInputDialog(null,
                                  "What do you want to do?",
                                  "Input", JOptionPane.QUESTION_MESSAGE,
                                   null, options, options[0]);
            System.out.println("choice = " + choice);
            if(choice == null) { // null -> user canceled/dismissed dialog
                keepGoing = false;
                break;
            }
            if(choice.indexOf("enter") != -1) {
                receiveData();
            } else if(choice.indexOf("find") != -1) {
                search();
            }
        }
        System.exit(0);
    }

    private static void receiveData() {
        String name = JOptionPane.showInputDialog("Flight Info Input\n\n" +
                    "Please enter the name of the Airline of the new record.\n\n");

        String fltNumStr = JOptionPane.showInputDialog("Flight Info Input\n\n" +
                    "Please enter the flight number of the new record.\n\n");
        int flightNum = Integer.parseInt(fltNumStr);

        String origin = JOptionPane.showInputDialog("Flight Info Input\n\n" +
                    "Please enter the city of origin for the new record.\n\n");

        String dest = JOptionPane.showInputDialog("Flight Info Input\n\n" +
                    "Please enter the destination city for the new record.\n\n");
            
        flights.add(new Flight(name, origin, dest, flightNum));
    }

    private static void search() {
        //System.out.println("Number of flights = " + flights.size());
        String searchType = JOptionPane.showInputDialog("Would you like to " +
                               "complete a search by flight number (enter s)\n" +
                               "or a search by city of Destination (enter d)?\n\n");
        boolean found = false;

        if(searchType.equalsIgnoreCase("s")){
            String fltNumStr = JOptionPane.showInputDialog("Please enter the " +
                                     "flight number that you wish to search for:\n\n");
            int numSearch = Integer.parseInt(fltNumStr);
            for(int j = 0; j < flights.size(); j++) {
                Flight flight = flights.get(j);
                if(numSearch == flight.getFlightNumber()) {
                    System.out.println("Found flight with flightNmber " +
                                        numSearch + ":");
                    System.out.println(flight);
                    found = true;

                    break;
                }
            }
            if(!found)
                System.out.println("no joy");
        }
 
        if(searchType.equalsIgnoreCase("d")){
            String destSearch = JOptionPane.showInputDialog("Please enter the " +
                                "city of destination that you wish to search for:\n\n");
            for(int j = 0; j < flights.size(); j++) {
                Flight flight = flights.get(j);
                if(destSearch.equals(flight.getDestCity())) {
                    System.out.println("Found flight with destination " +
                                        destSearch + ":");
                    System.out.println(flight);
                    found = true;
                    break;
                }
            }
            if(!found)
                System.out.println("no joy");
        }
    }
}

class Flight {
    String airlineName;
    String originCity;
    String destinationCity;
    int flightNumber;
    
    public Flight(String name, String orig, String dest, int fltNum) {
        this.airlineName = name;
        this.originCity = orig;
        this.destinationCity = dest;
        this.flightNumber = fltNum;
    }

    public String getAirlineName() { return airlineName; }

    public String getOriginCity() { return originCity; }

    public String getDestCity() { return destinationCity; }

    public int getFlightNumber() { return flightNumber; }

    public String toString() {
        return "Flight[airlineName:"     + airlineName +
                     " originCity:"      + originCity +
                     " destinationCity:" + destinationCity +
                     " flightNumber:"    + flightNumber + "]";
    }
}