SelectPane

import javafx.scene.control.Label;
import javafx.scene.control.CheckBox;
import javafx.scene.layout.*;
import javafx.event.ActionEvent;	//**Need to import
import javafx.event.EventHandler;	//**Need to import
import java.util.ArrayList;
import javafx.collections.ObservableList;
import javafx.scene.Node;

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

public class SelectPane extends BorderPane
{
    private ArrayList<Club> clubList;
    private ArrayList<CheckBox> checkBoxes;
    private Label numMembers;
    private int amountOfMembers;
    private Pane pane;
    private VBox leftbox;

    //constructor
    public SelectPane(ArrayList<Club> list)
    {
        //initialize instance variables
        this.clubList = list;
        amountOfMembers = 0;
        Label selectClubs = new Label("Select some club");
        numMembers = new Label("The total number of members for the selected club(s): " + amountOfMembers);
        pane = new Pane();
        leftbox = new VBox();
        checkBoxes = new ArrayList<>(checkBoxes);

        //set up the layout
        //----

        selectClubs.setLayoutX(1);
        selectClubs.setLayoutY(2);
        leftbox.setLayoutX(1);
        leftbox.setLayoutY(10);
        numMembers.setLayoutX(1);
        numMembers.setLayoutY(340);




        //create an empty pane wh
        //here you can add check boxes later
        //----

        pane.getChildren().addAll(selectClubs,numMembers,leftbox);


        //sample.SelectPane is a BorderPane - add the components here
        //----

        this.setCenter(pane);


    } //end of constructor

    //This method uses the newly added parameter sample.Club object
    //to create a CheckBox and add it to a pane created in the constructor
    //Such check box needs to be linked to its handler class
    public void updateClubList(Club newClub)
    {
        //-------
        CheckBox temp = new CheckBox(newClub.toString());

            leftbox.getChildren().add(temp);
            temp.setOnAction(new SelectionHandler());
            checkBoxes.add(temp);

    }

    //create a SelectionHandler class
    private class SelectionHandler implements EventHandler<ActionEvent>
    {
        //Override the abstact method handle()
        public void handle(ActionEvent event)
        {


            int count = 0;

            for(int i = 0; i < checkBoxes.size(); i++) {

                if(checkBoxes.get(i).isSelected()) {

                    count++;
                    amountOfMembers = amountOfMembers + clubList.get(i).getNumberOfMembers();
                }

                if (count == 0) {
                    amountOfMembers = 0;
                }

            }

numMembers.setText("The total number of members for the selected clubs(s): " + numMembers);

            count = 0;
            amountOfMembers = 0;


            //When any radio button is selected or unselected
            //the total number of members of selected clubs should be updated
            //and displayed using a label.


        }
    } //end of SelectHandler class
} //end of sample.SelectPane class