Question

PLEASE COMPLETE THE CODES. 

package javaprogram;

import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Scanner;

/**
 * Movie class definition.
 *
 * @author David Brown
 * @version 2019-01-22
 */
public class Movie implements Comparable {

    // Constants
    public static final int FIRST_YEAR = 1888;
    public static final String[] GENRES = { "science fiction", "fantasy",
            "drama", "romance", "comedy", "zombie", "action", "historical",
            "horror", "war" };
    public static final int MAX_RATING = 10;
    public static final int MIN_RATING = 0;

    /**
     * Converts a string of the form "2,3,6" to an array of Integer objects, [2,
     * 3, 6]. Used when reading Movie objects from a file.
     *
     * @param string
     *            The string to convert to an array.
     * @return The array version of string.
     */
    public static Integer[] genresStringToList(final String string) {
        final ArrayList genresList = new ArrayList<>();

    // your code here

        // Convert arraylist to an array of Integer.
        return genresList.toArray(new Integer[1]);
    }

    /**
     * Testing.
     *
     * @param args
     *            Unused.
     */
    public static void main(final String[] args) {
        // Movie testing

    }

    /**
     * Returns a string of all genres in the Movie.GENRES list. Use for input
     * menus. Formatted as " 3: romance"
     *
     * @return the genres.
     */
    public static String menu() {

    // your code here

    }

    // Attributes
    private String director = "";
    private Integer[] genres = null;
    private double rating = 0;
    private String title = "";
    private int year = 0;

    /**
     * Instantiates a Movie object.
     *
     * @param title
     *            movie title
     * @param year
     *            year of release
     * @param director
     *            name of director
     * @param rating
     *            rating of 1 - 10 from IMDB
     * @param genres
     *            numbers representing movie genres list
     */
    public Movie(final String title, final int year, final String director,
            final double rating, final Integer[] genres) {

    // your code here

    }

    /*
     * (non-Javadoc) Compares this Movie against that Movie. Returns -1 if this Movie
     * comes before that Movie, 1 if this Movie comes after that Movie, and 0 if
     * the two Movies are the same.
     * 
     * Movies are compared first by title, then by year.
     *
     * @see java.lang.Comparable#compareTo(java.lang.Object)
     */
    @Override
    public int compareTo(final Movie that) {

    // your code here

    }

    /**
     * Converts a list of genre integers to a string of genre names.
     *
     * @return comma delimited string of genre names based upon the current
     *         movie object's integer genres list. e.g.: [0, 2] returns "science
     *         fiction, drama"
     */
    public String genresListToNames() {

    // your code here

    }

    /**
     * Director getter.
     *
     * @return the director
     */
    public String getDirector() {
        return this.director;
    }

    /**
     * Genres getter.
     *
     * @return the genres list
     */
    public Integer[] getGenres() {
        return this.genres;
    }

    /**
     * Rating getter.
     *
     * @return the rating
     */
    public double getRating() {
        return this.rating;
    }

    /**
     * Title getter.
     *
     * @return the title
     */
    public String getTitle() {
        return this.title;
    }

    /**
     * Year getter.
     *
     * @return the year
     */
    public int getYear() {
        return this.year;
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        int hash = 0;

        for (int i = 0; i < this.title.length(); i++) {
            hash += this.title.charAt(i);
        }
        hash *= this.year;
        return hash;
    }

    /**
     * Creates a formatted string of Movie key data in the format "title, year".
     * Ex: "Zulu, 1964".
     *
     * @return a Movie key as a string
     */
    public String key() {
        return String.format("%s, %d", this.title, this.year);
    }

    /**
     * Director setter.
     *
     * @param director
     *            the new director value
     */
    public void setDirector(final String director) {
        this.director = director;
    }

    /**
     * Genres setter.
     *
     * @param genres
     *            the new list of numeric genres
     */
    public void setGenres(final Integer[] genres) {
        this.genres = genres;
    }

    /**
     * Rating setter.
     *
     * @param rating
     *            the new rating
     */
    public void setRating(final double rating) {
        this.rating = rating;
    }

    /**
     * Title setter.
     *
     * @param title
     *            the new title
     */
    public void setTitle(final String title) {
        this.title = title;
    }

    /**
     * Year setter.
     *
     * @param year
     *            the new year
     */
    public void setYear(final int year) {
        this.year = year;
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#toString() Creates a formatted string of movie
     * data.
     */
    @Override
    public String toString() {

    // your code here

    }

    /**
     * Writes a single line of movie data to an open file in the format
     * title|year|director|rating|codes
     *
     * @param ps
     *            output printstream
     */
    public void write(final PrintStream ps) {

    // your code here

    }

    /**
     * Converts a genres list of the form [2,3,7] to a string "2,3,7" for
     * writing Movie data to a file.
     *
     * @return the genres list string
     */
    private String genresListToString() {

    // your code here

    }

}

Answer 1

/***********************************Movie.java****************/

package javaprogram;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

/**
* Movie class definition.
*
* @author David Brown
* @version 2019-01-22
*/
public class Movie implements Comparable<Movie> {

   // Constants
   public static final int FIRST_YEAR = 1888;
   public static final String[] GENRES = { "science fiction", "fantasy", "drama", "romance", "comedy", "zombie",
           "action", "historical", "horror", "war" };
   public static final int MAX_RATING = 10;
   public static final int MIN_RATING = 0;

   /**
   * Converts a string of the form "2,3,6" to an array of Integer objects, [2, 3,
   * 6]. Used when reading Movie objects from a file.
   *
   * @param string The string to convert to an array.
   * @return The array version of string.
   */
   public static Integer[] genresStringToList(final String string) {
       final ArrayList<Integer> genresList = new ArrayList<>();

       String[] list = string.split(",");
       for (String string2 : list) {

           genresList.add(Integer.parseInt(string2));
       }

       // Convert arraylist to an array of Integer.
       return genresList.toArray(new Integer[10]);
   }

   /**
   * Testing.
   *
   * @param args Unused.
   */
   public static void main(final String[] args) {
       // Movie testing

   }

   /**
   * Returns a string of all genres in the Movie.GENRES list. Use for input menus.
   * Formatted as " 3: romance"
   *
   * @return the genres.
   */
   public static String menu() {

       String menu = "";
       int i = 1;
       for (String string : GENRES) {

           menu = i + ": " + string + "\n";
       }

       return menu;
   }

   // Attributes
   private String director = "";
   private Integer[] genres = null;
   private double rating = 0;
   private String title = "";
   private int year = 0;

   /**
   * Instantiates a Movie object.
   *
   * @param title movie title
   * @param year year of release
   * @param director name of director
   * @param rating rating of 1 - 10 from IMDB
   * @param genres numbers representing movie genres list
   */
   public Movie(final String title, final int year, final String director, final double rating,
           final Integer[] genres) {

       this.title = title;
       this.year = year;
       this.director = director;
       this.genres = genres;
       this.rating = rating;

   }

   /*
   * (non-Javadoc) Compares this Movie against that Movie. Returns -1 if this
   * Movie comes before that Movie, 1 if this Movie comes after that Movie, and 0
   * if the two Movies are the same.
   *
   * Movies are compared first by title, then by year.
   *
   * @see java.lang.Comparable#compareTo(java.lang.Object)
   */
   @Override
   public int compareTo(final Movie that) {

       if (this.year < that.year) {

           return -1;
       } else if (this.year > that.year) {

           return 1;
       } else {

           return 0;
       }

   }

   /**
   * Converts a list of genre integers to a string of genre names.
   *
   * @return comma delimited string of genre names based upon the current movie
   * object's integer genres list. e.g.: [0, 2] returns "science fiction,
   * drama"
   */
   public String genresListToNames() {

       String genre = "";
       for (String string : GENRES) {

           genre += string + ",";
       }

       return genre;

   }

   /**
   * Director getter.
   *
   * @return the director
   */
   public String getDirector() {
       return this.director;
   }

   /**
   * Genres getter.
   *
   * @return the genres list
   */
   public Integer[] getGenres() {
       return this.genres;
   }

   /**
   * Rating getter.
   *
   * @return the rating
   */
   public double getRating() {
       return this.rating;
   }

   /**
   * Title getter.
   *
   * @return the title
   */
   public String getTitle() {
       return this.title;
   }

   /**
   * Year getter.
   *
   * @return the year
   */
   public int getYear() {
       return this.year;
   }

   /*
   * (non-Javadoc)
   *
   * @see java.lang.Object#hashCode()
   */
   @Override
   public int hashCode() {
       int hash = 0;

       for (int i = 0; i < this.title.length(); i++) {
           hash += this.title.charAt(i);
       }
       hash *= this.year;
       return hash;
   }

   /**
   * Creates a formatted string of Movie key data in the format "title, year". Ex:
   * "Zulu, 1964".
   *
   * @return a Movie key as a string
   */
   public String key() {
       return String.format("%s, %d", this.title, this.year);
   }

   /**
   * Director setter.
   *
   * @param director the new director value
   */
   public void setDirector(final String director) {
       this.director = director;
   }

   /**
   * Genres setter.
   *
   * @param genres the new list of numeric genres
   */
   public void setGenres(final Integer[] genres) {
       this.genres = genres;
   }

   /**
   * Rating setter.
   *
   * @param rating the new rating
   */
   public void setRating(final double rating) {
       this.rating = rating;
   }

   /**
   * Title setter.
   *
   * @param title the new title
   */
   public void setTitle(final String title) {
       this.title = title;
   }

   /**
   * Year setter.
   *
   * @param year the new year
   */
   public void setYear(final int year) {
       this.year = year;
   }

   /*
   * (non-Javadoc)
   *
   * @see java.lang.Object#toString() Creates a formatted string of movie data.
   */
   @Override
   public String toString() {
       return "Movie [director=" + director + ", genres=" + Arrays.toString(genres) + ", rating=" + rating + ", title="
               + title + ", year=" + year + "]";
   }

   /**
   * Writes a single line of movie data to an open file in the format
   * title|year|director|rating|codes
   *
   * @param ps output printstream
   * @throws FileNotFoundException
   */
   public void write(PrintStream ps) throws FileNotFoundException {

       ps = new PrintStream(new File("movies.txt"));
       ps.append(title + "|" + year + "|" + director + "|" + rating);
       ps.append("\n");

   }

   /**
   * Converts a genres list of the form [2,3,7] to a string "2,3,7" for writing
   * Movie data to a file.
   *
   * @return the genres list string
   */
   private String genresListToString() {

       String genreList = "";
       for (int i : genres) {

           genreList += i + ",";
       }
       return genreList;

   }

}

Please let me know if you have any doubt or modify the answer, Thanks:)