public class FlightTest {    public static void main(String[] args)     {        Flight info = new Flight(null, 0, null, null);        String name = "Delta Airlines";        int flightNum = 54663;        String origin = "Dallas, TX";        String destination = "Canton, MI";        info.setDestination(destination);        info.setFlightNum(flightNum);        info.setName(destination);        info.setOrigin(destination);        System.out.print(info);    }}上面的代碼是我的驅(qū)動程序。下面是我正在使用的方法。我不確定它是否沒有被正確調(diào)用或沒有被正確命名。public class Flight {    private String name;    private int flightNum;    private String origin;    private String destination;    public Flight (String name, int flightNum, String origin, String destination) {        name = "";        flightNum = 0;        origin ="";        destination = "";    }    public enum Status {        ONTIME, DELAYED, CANCELLED;    }    private Status flightStatus = Status.ONTIME;    public String getName() {        return name;    }    public void setName(String newName) {        name = newName;    }    public int getFlightNum() {        return flightNum;    }    public void setFlightNum(int newFlightNum) {        flightNum = newFlightNum;    }    public String getOrigin() {        return origin;    }    public void setOrigin(String newOrigin) {        origin = newOrigin;    }    public String getDestination() {        return destination;    }    public void setDestination(String newDestination) {        destination = newDestination;    }    public String toString() {        return "The airline name is " +name+ ".\the flight number is " +flightNum+".\the origin is " + origin + ".\the destination is " +destination;    }}將.toString()被切斷的話“中的”打印時，所有它打印出來是“密歇根州”以外flightnum的一切，這是正確的。