QuestionAnswered step-by-stepCan someone QC my code and tell

QuestionAnswered step-by-stepCan someone QC my code and tell me why I am getting this error…Can someone QC my code and tell me why I am getting this error message:No enclosing instance accessible package cmis242week8;import java.io.File;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;import java.util.Calendar;import java.util.List;public class CMIS242ASG4{public abstract class Media { // attributes private int id; private String title; private int year; private boolean rentStatus; // default constructor public Media() { } // parameterized constructor public Media(int id, boolean rentStatus, String title, int year) {  this.id = id;  this.rentStatus = rentStatus;  this.title = title;  this.year = year; } // get methods public int getId() {  return this.id; } public String getTitle() {  return this.title; } public int getYear() {  return this.year; } public boolean isRentStatus() { // checks rental status  return rentStatus; } // end get methods // set methods public void setId(int id) throws IdNotValidException {  if (!validateId(id)) { // checks that id is 5 digits long   throw new IdNotValidException(“Id should have 5 digits.”);  }  else {   this.id = id;  } } public void setTitle(String title) {  this.title = title; } public void setYear(int year) {  this.year = year; }  public void setRentStatus(boolean rentStatus) {  this.rentStatus = rentStatus; }// end set methods // calculate rental fee public double calculateRentalFee() {  return 1.50; // flat fee } // checks for exactly five digits and a number public boolean validateId(int id) {  String pattern = “^[0-9]{5}$”;  String uniqueId = String.valueOf(id);  return uniqueId.matches(pattern); } // display info @Override public String toString() {  String statusRental = rentStatus ? “Y” : “N”;  // storing class identifier character  String classPrefix = “”;  // get class name  String first = this.getClass().getSimpleName();  switch (first) {  case “EBook”:   classPrefix = “E”;   break;  case “MusicCD”:   classPrefix = “C”;   break;  case “MovieDVD”:   classPrefix = “D”;   break;  }  return id + “t” + statusRental + “t” + classPrefix + “t” + title + “ttt” + year + “t”; } } // end Media classpublic class EBook extends Media { // attribute private int numberOfChapters; // default constructor public EBook(int numberOfChapters) {  this.numberOfChapters = numberOfChapters; } // parameterized constructor public EBook(int id, boolean rentStatus, String title, int year, int numOfChapters) {  super(id, rentStatus, title, year);  this.numberOfChapters = numOfChapters; } // get/set methods public int getNumOfChapters() {  return this.numberOfChapters; } public void setNumOfChapters(int numOfChapters) {  this.numberOfChapters = numOfChapters; } // end get/set methods // calculate rental fee public double calculateRentalFee() {  // to get current year  int currentYear = Calendar.getInstance().get(Calendar.YEAR);  if(this.getYear() == currentYear) {   return this.numberOfChapters * 0.10 + 1.50 + 1.00;  }  else {   return this.numberOfChapters * 0.10 + 1.50;  } } // display info @Override public String toString() {  return super.toString() + numberOfChapters + “t” + calculateRentalFee(); } } // end EBook classpublic class MusicCD extends Media { // attribute private int length; // default constructor public MusicCD(int length) { } // parameterized constructor public MusicCD(int id, boolean rentStatus, String title, int year, int length) {  super(id, rentStatus, title, year);  this.length = length; } // get method public int getLength() {  return this.length; } //set method public void setLength(int length) {  this.length = length; } // calculate rental fee @Override public double calculateRentalFee() {  // to get current year   int currentYear = Calendar.getInstance().get(Calendar.YEAR);  if (this.getYear() == currentYear) {   return this.length * 0.045 + 1.50 + 2.00;  }   else {   return this.length * 0.045 + 1.50;  } } // display info @Override public String toString() {  String result = new String().format(“%-20s%-20s%-20s”, super.toString(), length, calculateRentalFee());  return result; }} // end MusicCD classpublic class MovieDVD extends Media { // attribute private int size; // default constructor public MovieDVD() { } // parameterized constructor public MovieDVD(int id, boolean rentStatus, String title, int year, int size) {  super(id, rentStatus, title, year);  this.size = size; } // get method public int getSize() {  return this.size; } // set method public void setSize(int size) {  this.size = size; } // calculate rental fee @Override public double calculateRentalFee() {  // to get current year  int currentYear = Calendar.getInstance().get(Calendar.YEAR);  if (this.getYear() == currentYear) {   return 5.00;  } else {   return 3.25 + 1.50;  } } // display info @Override public String toString() {  return super.toString() + size + “t” + calculateRentalFee(); }} // end MovieDVD classpublic class IdNotValidException extends Exception { private static final long serialVersionUID = 1L; public IdNotValidException(String message) {  super(message); }} // end IdNotValidExceptionpublic class Manager { List mediaList = new ArrayList<>(); // array list // default constructor public Manager() { } public void loadMediaFromFile() throws Exception {  try {   File mediaObject = new File(“PRJ4Rentals.txt”);   try (Scanner fileReader = new Scanner(mediaObject)) {    while (fileReader.hasNextLine()) {     String data = fileReader.nextLine();     String[] str = data.split(“,”);     switch (str[2]) {     case “E”:      mediaList.add(new EBook(Integer.parseInt(str[0]), Boolean.parseBoolean(str[1]), str[3], Integer.parseInt(str[4]), Integer.parseInt(str[5])));      break;     case “C”:      mediaList.add(new MusicCD(Integer.parseInt(str[0]), Boolean.parseBoolean(str[1]), str[3], Integer.parseInt(str[4]), Integer.parseInt(str[5])));      break;     case “D”:      mediaList.add(new MovieDVD(Integer.parseInt(str[0]), Boolean.parseBoolean(str[1]), str[3], Integer.parseInt(str[4]), Integer.parseInt(str[5])));      break;     default:      break;     }    }   }  } catch (FileNotFoundException e) {   System.out.println(“File cannot be found.”);  } } // add media object public void addMedia() throws Exception {  Scanner scannerAdd = new Scanner(System.in); // scanner  System.out.println(“”);  System.out.println(“ttChoose item to add:”);  System.out.println(“tt1. Ebook”);  System.out.println(“tt2. MusicCD”);  System.out.println(“tt3. MovieDVD”);  System.out.print(“ttEnter your selection: “);  int choice = Integer.parseInt(scannerAdd.nextLine());  switch (choice) {  case 1:   System.out.print(“Enter id: “);   int id = scannerAdd.nextInt();   scannerAdd.nextLine();   System.out.print(“Enter title: “);   String title = scannerAdd.nextLine();   System.out.print(“Enter year: “);   int year = scannerAdd.nextInt();   System.out.print(“Enter rental status(true for rented/false for not rented) : “);   boolean available = scannerAdd.nextBoolean();   scannerAdd.nextLine();   System.out.print(“Enter number of chapters: “);   String numberOfChapters = scannerAdd.nextLine();   mediaList.add(new EBook(id, available, title, year, Integer.parseInt(numberOfChapters)));   System.out.println(“E-Book added.”);   break;  case 2:   System.out.print(“Enter id: “);   int cId = scannerAdd.nextInt();   scannerAdd.nextLine();   System.out.print(“Enter title: “);   String cTitle = scannerAdd.nextLine();   System.out.print(“Enter year: “);   int cYear = scannerAdd.nextInt();   System.out.print(“Enter rental status(true for rented/false for not rented) : “);   boolean cAvailable = scannerAdd.nextBoolean();   scannerAdd.nextLine();   System.out.print(“Enter length in minutes: “);   String length = scannerAdd.nextLine();   mediaList.add(new MusicCD(cId, cAvailable, cTitle, cYear, Integer.parseInt(length)));   System.out.println(“Music CD added.”);   break;  case 3:   System.out.print(“Enter id: “);   int mId = scannerAdd.nextInt();   scannerAdd.nextLine();   System.out.print(“Enter title: “);   String mTitle = scannerAdd.nextLine();   System.out.print(“Enter year: “);   int mYear = scannerAdd.nextInt();   System.out.print(“Enter rental status(true for rented/false for not rented) : “);   boolean mAvailable = scannerAdd.nextBoolean();   scannerAdd.nextLine();   System.out.print(“Enter size in megabytes: “);   String mb = scannerAdd.nextLine();   mediaList.add(new MovieDVD(mId, mAvailable, mTitle, mYear, Integer.parseInt(mb)));   System.out.println(“Movie DVD added.”);   break;  default:   System.out.println(“Invalid choice, select from the menu.”);   break;  } } // end Add media // find media objects public void findMedia(int mediaID) {  boolean found = false;  for (int i = 0; i < mediaList.size(); i++) {   if (mediaList.get(i).getId() == mediaID) {    System.out.print(mediaList.get(i));    found = true;   }  }  if (!found) {   System.out.println("Media cannot be found.");  } } // end find media objects // remove media public void remove(int mediaId) {  Media del = null;  // iterate list  for (Media st : mediaList) {   // find media to delete by id   if (st.getId() == mediaId) {    del = st;   }  }  if (del == null) { // if null, show error message   System.out.println("Invalid media id.");  }   else {   mediaList.remove(del); // remove from list   System.out.println("Media removed.");  } } // end remove media // rent media public void rentMedia(int id) {  boolean found = false;  for (Media md : mediaList) {   if (md.getId() == id) {    found = true;    // check if media is rented or not    if (md.isRentStatus()) {     System.out.println("Media successfully rented. Rental Fee = $" + md.calculateRentalFee());                                          md.setRentStatus(false); // change status to false if successfully rented    }     else {     System.out.println("Media with id: " + id + " is not available for rental.");     break;    }   }  }  if (!found) {   System.out.println("Media with id: " + id + " cannot be found.");  } } // end rent media // update media public void modifyMedia(int id) {  boolean found = false;  for (Media md : mediaList) {   Scanner scannerEdit = new Scanner(System.in); //  scanner   System.out.println("");   System.out.println("ttChoose Item To Update : ");   System.out.println("tt1. Ebook");   System.out.println("tt2. MovieDVD");   System.out.println("tt3. MusicCD");   System.out.print("ttEnter your selection: ");   int itemChoice = Integer.parseInt(scannerEdit.nextLine());   EBook eB;   MovieDVD mDvd;   MusicCD mCd;   switch (itemChoice) {   case 1:    if (md instanceof EBook && md.getId() == id) {     found = true;     eB = (EBook) md;    }     else {     System.out.println("The Ebook with id: " + id + " cannot be found.");     return;    }    System.out.print("Enter title: ");    String title = scannerEdit.nextLine();    System.out.print("Enter year: ");    int year = scannerEdit.nextInt();    System.out.print("Enter number of chapters: ");    int chapter = scannerEdit.nextInt();    System.out.print("Enter rental status(true for rented/false for not rented) : ");    boolean available = scannerEdit.nextBoolean();    eB.setTitle(title);    eB.setYear(year);    eB.setRentStatus(available);    eB.setNumOfChapters(chapter);    System.out.println("Media successfully updated.");    break;   case 2:    if (md instanceof MusicCD && md.getId() == id) {     found = true;     mCd = (MusicCD) md;    }     else {     System.out.println("The MusicCD with id: " + id + " cannot be found.");     return;    }    scannerEdit.nextLine();    System.out.print("Enter title: ");    String cTitle = scannerEdit.nextLine();    System.out.print("Enter year: ");    int cYear = scannerEdit.nextInt();    System.out.print("Enter rental status(true for rented/false for not rented) : ");    boolean cAvailable = scannerEdit.nextBoolean();    scannerEdit.nextLine();    System.out.print("Enter length in minutes: ");    String length = scannerEdit.nextLine();    mCd.setTitle(cTitle);    mCd.setYear(cYear);    mCd.setRentStatus(cAvailable);    mCd.setLength(Integer.parseInt(length));    System.out.println("Media updated successfully.");    break;   case 3:    if (md instanceof MovieDVD && md.getId() == id) {     found = true;     mDvd = (MovieDVD) md;    }     else {     System.out.println("The MovieDVD with id: " + id + " cannot be found.");     return;    }    scannerEdit.nextLine();    System.out.print("Enter title: ");    String mTitle = scannerEdit.nextLine();    System.out.print("Enter year: ");    int mYear = scannerEdit.nextInt();    System.out.print("Enter rental status(true for rented/false for not rented) : ");    boolean mAvailable = scannerEdit.nextBoolean();    scannerEdit.nextLine();    System.out.print("Enter size in megabytes: ");    String mb = scannerEdit.nextLine();    mDvd.setTitle(mTitle);    mDvd.setYear(mYear);    mDvd.setRentStatus(mAvailable);    mDvd.setSize(Integer.parseInt(mb));    System.out.println("Media updated successfully.");    break;   default:    System.out.println("Invalid choice.");    break;   }   break;  }  if (!found) {   System.out.println("The media object with id: " + id + " cannot be found.");  } } // display current media available public void displayCurrentMedia() {  if (mediaList.isEmpty()) {   System.out.println("Media cannot be found.");   return;  }  for (Media media : mediaList) {   System.out.println(media.toString());  } } // end display current media // display one object public void displayOneMedia(int mediaId) {  if (mediaList.isEmpty()) {   System.out.println("Media cannot be found.");   return;  }  for (Media media : mediaList) {   if (media.getId() == mediaId) {    System.out.println(media.toString());    break;   }    else {    System.out.println("No media containing that id.");    break;   }  } } // end display one object // display all media objects public void displayAllMedia(String mediaType) {  if (mediaList.isEmpty()) {   System.out.println("Media cannot be found.");   return;  }  for (Media media : mediaList) {   System.out.println(media);  } } // end display all media objects // display all media types public void displayEbook() {  if (mediaList.isEmpty()) {   System.out.println("Media cannot be found.");   return;  }  for (Media media : mediaList) {   if (media instanceof EBook) {    System.out.println(media.toString());   }  } } // end display EBook public void displayMusicCD() {  if (mediaList.isEmpty()) {   System.out.println("Media cannot be found.");   return;  }  for (Media media : mediaList) {   if (media instanceof MusicCD) {    System.out.println(media.toString());   }  } } // end display MusicCD public void displayMovieDVD() {  if (mediaList.isEmpty()) {   System.out.println("Media cannot be found.");   return;  }  for (Media media : mediaList) {   if (media instanceof MovieDVD) {    System.out.println(media.toString());   }  } } // end display MovieDVD   public static void main(String[] args) throws Exception {   // instance of manager   Manager manager = new Manager();   // load media data from file   manager.loadMediaFromFile();   System.out.println("Media List: ");   // title   System.out.println("IDtRenttTypetTitletttPubtScopetCalc");   manager.displayCurrentMedia();   //  ArrayList to hold the media library   ArrayList media = new ArrayList<>();   Scanner input = new Scanner(System.in); // scanner   // loop until exit   while (CMIS242ASG4.menu()) {    int choice = 0;    System.out.print(“Enter your selection: “);    choice = Integer.parseInt(input.nextLine());    switch (choice) {    case 1:     manager.addMedia();     break;    case 2:     System.out.print(“Enter media id to find: “);     int idMedia = Integer.parseInt(input.nextLine());     manager.findMedia(idMedia);     break;    case 3:     System.out.print(“Enter media id to remove: “);     int id = Integer.parseInt(input.nextLine());     manager.remove(id);     break;    case 4:     System.out.print(“Enter media id to rent: “);     int idRentMedia = Integer.parseInt(input.nextLine());     manager.rentMedia(idRentMedia);     break;    case 5:     System.out.print(“Enter media id to modify: “);     int mediaIdModify = Integer.parseInt(input.nextLine());     manager.modifyMedia(mediaIdModify);     break;    case 6:     System.out.println(“”);     System.out.println(“tChoose Display type: “);     System.out.println(“t1. Display all items”);     System.out.println(“t2. Display one item”);     System.out.println(“t3. Display all selections of a type(Ebook, MovieDVD, MusicCD)”);     System.out.print(“Enter your selection: “);     int displayChoice = Integer.parseInt(input.nextLine());     // loop to display a specific media category     switch (displayChoice) {     case 1:      manager.displayCurrentMedia();      break;     case 2:      System.out.print(“Enter media id: “);      int displayId = Integer.parseInt(input.nextLine());      manager.displayOneMedia(displayId);      break;     case 3:      System.out.println(“”);      System.out.println(“ttChoose Display Item : “);      System.out.println(“tt1. Ebook”);      System.out.println(“tt2. MovieDVD”);      System.out.println(“tt3. MusicCD”);      System.out.print(“ttEnter your selection: “);      int itemChoice = Integer.parseInt(input.nextLine());      // loop to display specific media type      switch (itemChoice) {      case 1:       manager.displayEbook();       break;      case 2:       manager.displayMovieDVD();       break;      case 3:       manager.displayMusicCD();       break;      default:       System.out.println(“Invalid choice.”);       break;      }      break;     default:      System.out.println(“Invalid choice.”);      break;     }     break;    case 7:     System.out.println(“Thank you for using the program. Goodbye!”);     System.exit(0);     break;    default:     System.out.println(“Enter valid choice.”);     break;    }   }   input.close();  } }  private static boolean menu() {   System.out.println(“”);   System.out.println(“Media Rental System”);   System.out.println(“1. Add “);   System.out.println(“2. Find “);   System.out.println(“3. Remove “);   System.out.println(“4. Rent “);   System.out.println(“5. Modify “);   System.out.println(“6. Display One Media Object “);   System.out.println(“7. Display All Media of One Type “);   System.out.println(“8. Display Whole Library of Media Objects “);   System.out.println(“9. Exit “);   return true;  } }// end menuComputer ScienceEngineering & TechnologyC++ ProgrammingCMIS 242Share Question

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