Assignment6

You can look at the Java programs in the text book to see how comments are added to programs.

Minimal Submitted Files
You are required, but not limited, to turn in the following source files:

Assignment6.java (No need to modify) 
Movie.java (No need to modify, modified version from the assignment 4)
Review.java (No need to modify) 
CreatePane.java – to be completed
ReviewPane.java – to be completed

You might need to add more methods than the specified ones.

Skills to be Applied:
JavaFX, ArrayList

Classes may be needed:  
Button, TextField, TextArea, Label, RadioButton, ListView, and ActionHandler. You may use other classes.

Here is the Assignmnet6.java: 
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.layout.StackPane;
import java.util.ArrayList;

public class Assignment6 extends Application
{
   private TabPane tabPane;
   private CreatePane createPane;
   private ReviewPane reviewPane;
   private ArrayList<Movie> movieList;

   public void start(Stage stage)
   {
       StackPane root = new StackPane();

       //movieList to be used in both createPane & reviewPane
       movieList = new ArrayList<Movie>();

       reviewPane = new ReviewPane(movieList);
       createPane = new CreatePane(movieList, reviewPane);

       tabPane = new TabPane();

       Tab tab1 = new Tab();
       tab1.setText(“Movie Creation”);
       tab1.setContent(createPane);

       Tab tab2 = new Tab();
       tab2.setText(“Movie Review”);
       tab2.setContent(reviewPane);

       tabPane.getSelectionModel().select(0);
       tabPane.getTabs().addAll(tab1, tab2);

       root.getChildren().add(tabPane);

       Scene scene = new Scene(root, 700, 400);
       stage.setTitle(“Movie Review Apps”);
       stage.setScene(scene);
       stage.show();
   }

   public static void main(String[] args)
   {
       launch(args);
   }
}
Here is Movie.java:
public class Movie
 {
   private String movieTitle;
     private int year;
     private int length;
     private Review bookReview;
     
   //Constructor to initialize all member variables
   public Movie()
    {
      movieTitle = “?”;
      length = 0;
      year = 0;
      bookReview = new Review();
    }

   //Accessor methods
   public String getMovieTitle()
    {
      return movieTitle;
    }

   public int getLength()
    {
      return length;
    }

   public int getYear()
    {
  return year;
}

   public Review getReview()
    {
       return bookReview;
    }

   //Mutator methods
   public void setMovieTitle(String aTitle)
    {
     movieTitle = aTitle;
    }

   public void setLength(int aLength)
    {
     length = aLength;
    }

   public void setYear(int aYear)
    {
        year = aYear;
    }

   public void addRating(double rate)
     {
         bookReview.updateRating(rate);
     }

   //toString() method returns a string containg the information on the movie
   public String toString()
    {
      String result = “\nMovie Title:\t\t” + movieTitle
                    + “\nMovie Length:\t\t” + length
                    + “\nMovie Year:\t\t” + year
                    + “\n” + bookReview.toString() + “\n\n”;
      return result;
     }
  }

Here is Review.java:
import java.text.DecimalFormat;

public class Review
{
  private int numberOfReviews;
  private double sumOfRatings;
  private double average;

  //Constructor to initialize all member variables
  public Review()
   {
    numberOfReviews = 0;
    sumOfRatings = 0.0;
    average = 0.0;
   }

  //It updates the number of REviews and avarage based on the
  //an additional rating specified by its parameter
  public void updateRating(double rating)
   {
     numberOfReviews++;
     sumOfRatings += rating;
     if (numberOfReviews > 0)
      {
       average = sumOfRatings/numberOfReviews;
      }
     else
       average = 0.0;
   }

  //toString() method returns a string containg its review average
  //and te number of Reviews
  public String toString()
   {
     DecimalFormat fmt = new DecimalFormat(“0.00”);
     String result = “Reviews:\t” + fmt.format(average) + “(”
                   + numberOfReviews + “)”;
     return result;
    }
 }
Here is CreatePane.java:
import java.util.ArrayList;
import javafx.scene.layout.HBox;
//import all other necessary javafx classes here
//—-

public class CreatePane extends HBox
{
    private ArrayList<Movie> movieList;
    
    //The relationship between CreatePane and ReviewPane is Aggregation
    private ReviewPane reviewPane;

    //constructor
    public CreatePane(ArrayList<Movie> list, ReviewPane rePane)
     {
        this.movieList = list;
        this.reviewPane = rePane;

        //Step #1: initialize each instance variable and set up the layout
        //—-
        
        //create a GridPane hold those labels & text fields
        //consider using .setPadding() or setHgap(), setVgap()
        //to control the spacing and gap, etc.
        //—-
        
        
        //You might need to create a sub pane to hold the button
        //—-
        
        //Set up the layout for the left half of the CreatePane.
        //—-
        
        
        //the right half of this pane is simply a TextArea object
        //Note: a ScrollPane will be added to it automatically when there are no
        //enough space
        
        //Add the left half and right half to the CreatePane
        //Note: CreatePane extends from HBox
        //—-
        
        //Step #3: register source object with event handler
        //—-
        
    } //end of constructor

    //Step 2: Create a ButtonHandler class
    //ButtonHandler listens to see if the button “Create a Movie” is pushed or not,
    //When the event occurs, it get a movie’s Title, Year, and Length
    //information from the relevant text fields, then create a new movie and add it inside
    //the movieList. Meanwhile it will display the movie’s information inside the text area.
    //It also does error checking in case any of the textfields are empty or non-numeric string is typed
    private class ButtonHandler implements EventHandler<ActionEvent>
     {
        //Override the abstact method handle()
        public void handle(ActionEvent event)
         {
            //declare any necessary local variables here
            //—
            
            //when a text field is empty and the button is pushed
            if ( //—-  )
                {
                    //handle the case here
                    
                }
                else //for all other cases
                {
                    //—-
                    //at the end, don’t forget to update the new arrayList
                    //information on the ListView of the ReviewPane
                    //—-
                    
                    //Also somewhere you will need to use try & catch block to catch
                    //the NumberFormatException
                }
         } //end of handle() method
   } //end of ButtonHandler class
}

Here is ReviewPane.java
import javafx.scene.control.ListView;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.layout.VBox;
import javafx.event.ActionEvent; //**Need to import to handle event
import javafx.event.EventHandler; //**Need to import to handle event

import java.util.ArrayList;
import javafx.scene.layout.HBox;

//import all other necessary javafx classes here
//—-

public class ReviewPane extends VBox
{
   private ArrayList<Movie> movieList;

   //A ListView to display movies created
   private ListView<Movie> movieListView;

   //declare all other necessary GUI variables here
   //—-
    
   //constructor
   public ReviewPane(ArrayList<Movie> list)
   {
       //initialize instance variables
       this.movieList = list;

       //set up the layout
       //—-
       
       
       //ReviewPane is a VBox – add the components here
       //—-
       
       //Step #3: Register the button with its handler class
       //—-
       
       
       
   } //end of constructor

 //This method refresh the ListView whenever there’s new movie added in CreatePane
 //you will need to update the underline ObservableList object in order for ListView
 //object to show the updated movie list
 public void updateMovieList(Movie newMovie)
 {
     //——-
 }

 //Step 2: Create a RatingHandler class
 private class RatingHandler implements EventHandler<ActionEvent>
    {
        //Override the abstact method handle()
        public void handle(ActionEvent event)
        {
            //When “Submit Review” button is pressed and a movie is selected from
            //the list view’s average rating is updated by adding a additional
            //rating specified by a selected radio button
            if (//—-)
                {
                    //—-
                    
                }
        }
    } //end of RatingHandler
} //end of ReviewPane class

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