Minimal Submitted Files You are required, but not limited, to turn in the following source files:
Minimal Submitted Files You are required, but not limited, to turn in the following source files: Assignment8.java(More code need to be added) Flight.java(given by the instructor, it needs to be modified for this assignment) Schedule.java(given by the instructor, it needs to be modified for this assignment) FlightNumberComparator.java DepartureComparator.java Sorts.java FlightManagement.java Requirements to get full credits in Documentation 1. The assignment number, your name, StudentID, Lecture number/time, and a class description need to be included at the top of each file/class. 2. A description of each method is also needed. 3. Some additional comments inside of methods(especially for the “main” method) to explain code that are hard to follow should be written. You can look at the Java programs in the text book to see how comments are added to programs. Skills to be Applied In addition to what has been covered in previous assignments, the use of the following items, discussed in class, will probably be needed: Sorting Searching Aggregate Objects Interfaces Serialization File read/write Schedule The Schedule class implements the “Serializable” interface so that its object can be stored. (The Serializable interface is defined in the “java.io” package.) It needs to define the following method: public void copy(Schedule other) It needs to copy every member variable value from “other” parameter to their corresponding variable of the object itself using “this” reference. For instance, if we have two objects of Schedule, schedule1 and schedule2, then, executing the following statement: schedule1.copy(schedule2) should resulting to have the object schedule1 to have the same city, year, month, date, and time value as the ones for schedule2, but schedule1 and schedule2 should not become aliases. Flight The Flight class implements the “Serializable” interface so that its object can be stored. (The Serializable interface is defined in the “java.io” package.) It needs to define the following method: public void copy(Flight other) It needs to copy every member variable value from “other” parameter to their corresponding variable of the object itself using “this” reference. FlightNumberComparator The FlightNumberComparator class implements the “Comparator” interface (The Comparator interface is in “java.util” package.). It needs to define the following method that was an inherited abstract method from Comparator interface: public int compare(Object first, Object second) (Note that you can also define: public int compare(Flight first, Flight second) instead by making the class implements Comparator. If the first argument object has a name of its airlines lexicographically less than that of the second argument, an int less than zero is returned. If the first argument object has a name of its airlines lexicographically larger than that of the second argument, an int greater than zero is returned. If their airlines names are same, then their flight numbers should be compared. If they have same airlines and flight numbers, then 0 should be returned. DepartureComparator The DepartureComparator class implements the “Comparator” interface (The Comparator interface is in “java.util” package.). It needs to define the following method that was an inherited abstract method from Comparator interface: public int compare(Object first, Object second) (Note that you can also define: public int compare(Flight first, Flight second) instead by making the class implements Comparator. If the first argument object has a city lexicographically less than that of the second argument, an int less than zero is returned. If the first argument object has a city lexicographically larger than that of the second argument, an int greater than zero is returned. If their cities are same, then their departure years should be compared. (if the first argument object has a smaller year, then it should return a negative integer. If the first argument object has a larger year, then it should return a positive integer.) If their cities and departure years are same, then their departure months should be compared. If their cities, departure years, and departure months are same, then their departure date should be compared. If their cities, departure years, departure months, and departure dates are same, then their departure time should be compared. If their cities, departure years, departure months, departure dates, and departure time are same, then 0 should be returned. Sorts The Sorts class is a utility class that will be used to sort a list of Flight objects. Sorting algorithms are described in the algorithm note posted under Notes section of the course web site. These algorithms sort numbers stored in an array. It is your job to modify it to sort an array of objects. The Sorts class object will never be instantiated. It must have the following methods: public static void sort(Flight[] flightList, int size, Comparator) Your sort method utilizes the compare method of the parameter Comparator object to sort. You can use one of Selection sort or Insertion Sort. The parameter size specifies how many first elements should be sorted. Note that not all elements in the array should be sorted, since some of them will be null pointers. FlightManagement The FlightManagement class has a list of Flight objects that can be organized at the flight management system. The flight management system will be a fully encapsulated object. The FlightManagement class implements the Serializable interface. It has the following attributes: Attribute name Attribute type Description flightList an array of Flight objects A list of Flight objects in the flight management system currentFlightsCount int the number of Flight objects created and stored in the flightList maxSize int the maximum number of Flight objects that can be stored in the flightList array. It is also the size of the flightList array. The following public methods should be provided to interact with the flight management system: Method Description FlightManagement(int maximumsize) A Constructor of the FlightManagement class. Using the parameter value, it should initialize the member variable maxSize. Then it should instantiate an array of Flight objects using the maxSize, and initialize each slot of the array to null for every index. It should also initialize the member variable currentFlightsCount to 0. int flightNumberExists(String airlines, int flightNumber) Search for a Flight object by airlines and flightNumber, and return the index of the object if found. Return -1 if not found. The parameters are airlines and flightNum of a Flight object. int departureExists(String city, int year, int month, int date, String time) Search and for Flight objects in the flight list that have the same departure city, year, month, date, and time as the parameter values and return the index of such object if found. Return -1 if not found. boolean addFlight(String airlines, int flightNum, String depCity, int depYear, int depMonth, int depDate, String depTime, String arrCity,int arrYear, int arrMonth, int arrDate, String arrTime) Add a Flight object to the flight list and return true if such object was added successfully. Return false if an object with the same airlines, flight number, departure city, year, month, date, and time already exists or currentFlightsCount is already same as maxSize, i.e., the array is full (the new object is not added). boolean removeFlightNumber(String airlines, int flightNumber) Remove a Flight object from the flight list. Return true if the object was removed successfully. Return false if the object with the given airlines and flight number does not exist. void sortByFlightNumber() Sort the list of Flight objects by airlines and flight number. This method calls the sort method defined in the Sorts class, using an object of FlightNumberComparator class as its second parameter. You should also make a use of copy() method of Flight class. void sortByDeparture() Sort the list of Flight objects by their departure information including its city, year, month, date, and time. This method calls the sort method defined in the Sorts class, using an object of DepartureComparator class as its second parameter. You should also make a use of copy() method of Flight class. String listFlights() List all Flight objects in the flight list. The returned string is the concatenation of each Flight object information in the list for the number of currentFlightsCount (do not use the size of the array here) Hint: you can utilize Flight’s toString method to help you complete this method. If there is no object in the list, This method should return the string containing “\nno flight\n\n”. void closeFlightManagement() Closes the flight management system by making the list empty. This can be done by making every slot of the flightList array to null, and also by setting currentFlightsCount to be 0. No input/output should occur in the flight management system. User interaction should be handled only by the driver class. You may add other methods to the class in order to make your life easier. Assignment8 All input and output should be handled in Assignment8 class. The main method should start by displaying this updated menu in this exact format: Choice\t\tAction\n ——\t\t——\n A\t\tAdd Flight\n C\t\tCreate FlightManagement\n D\t\tSearch by Flight Number\n E\t\tSearch by Departure\n L\t\tList Flights\n O\t\tSort by Flight Number\n P\t\tSort by Departure\n Q\t\tQuit\n R\t\tRemove by Flight Number\n T\t\tClose FlightManagement\n U\t\tWrite Text to File\n V\t\tRead Text from File\n W\t\tSerialize FlightManagement to File\n X\t\tDeserialize FlightManagement from File\n ?\t\tDisplay Help\n\n Next, the following prompt should be displayed: What action would you like to perform?\n Read in the user input and execute the appropriate command. After the execution of each command, redisplay the prompt. Commands should be accepted in both lowercase and uppercase. The following commands are modified or new. Add Flight This part is already implemented in Assignment8.java file. Please see the case A in the main of Assignment8.java. Create FlightManagement This part is already implemented in Assignment8.java file. Please see the case C in the main of Assignment8.java. Search by Flight Number This part is already implemented in Assignment8.java file. Please see the case D in the main of Assignment8.java. Search by Departure This part is already implemented in Assignment8.java file. Please see the case E in the main of Assignment8.java. Sort by Flight Number This part is already implemented in Assignment8.java file. Please see the case O in the main of Assignment8.java. Remove by Flight Number This part is already implemented in Assignment8.java file. Please see the case R in the main of Assignment8.java. List Flights Each Flight object information in the flight list should be displayed using the toString method provided in the Flight class. (and use listFlights( ) method in the FlightManagement class.) This part is already implemented in Assignment8.java file. Please see the case L in the main of Assignment8.java. Close FlightManagement Delete all Flight objects. Then, display the following: flight management system closed\n This part is already implemented in Assignment8.java file. Please see the case R in the main of Assignment8.javaT Write Text to File Your program should display the following prompt: Please enter a file name to write:\n Read in the filename and create an appropriate object to get ready to read from the file. Then it should display the following prompts: Please enter a string to write in the file:\n Read in the string that a user types, say “input”, then attach “\n” at the end of the string, and write it to the file. (i.e. input+”\n” string will be written in the file.) If the operation is successful, display the following: FILENAME was written\n Replace FILENAME with the actual name of the file. Use try and catch statements to catch IOException. The file should be closed in a finally statement. Read Text from File Your program should display the following prompt: Please enter a file name to read:\n Read in the file name create appropriate objects to get ready to read from the file. If the operation is successful, display the following (replace FILENAME with the actual name of the file): FILENAME was read\n Then read only the first line in the file, and display: The first line of the file is:\n CONTENT\n where CONTENT should be replaced by the actual first line in the file. Your program should catch the exceptions if there are. (Use try and catch statement to catch, FileNotFoundException, and the rest of IOException.) If the file name cannot be found, display FILENAME was not found\n where FILENAME is replaced by the actual file name. Serialize FlightManagement to File Your program should display the following prompt: Please enter a file name to write:\n Read in the filename and write the serialized FlightManagement object out to it. Note that any objects to be stored must implement Serializable interface. The Serializable interface is defined in java.io.* package. If the operation is successful, display the following: FILENAME was written\n Replace FILENAME with the actual name of the file. Use try and catch statements to catch NotSerializableExeption and IOException. Deserialize FlightManagement from File Your program should display the following prompt: Please enter a file name to read:\n Read in the file name and attempt to load the FlightManagement object from that file. Note that there is only one FlightManagement object in the Assignment8 class, and the first object read from the file should be assigned to the FlightManagement object. If the operation is successful, display the following (replace FILENAME with the actual name of the file): FILENAME was read\n Your program should catch the exceptions if there are. (Use try and catch statement to catch ClassNotFoundException, FileNotFoundException, and the rest of IOException.) See the output files for exception handling. Test cases:
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