SkateboardDesign

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

public class SkateboardDesign extends JFrame {
    /**
     * @ConnorSiebens
     * #6 Skateboard Designer p.913
     */
    private JPanel deckPanel;
    private final String[] decks = {"The master thrasher","The dictator","The street king"};
    private JComboBox<String> deckList;
    private JPanel truckPanel;
    private final String[] trucks = {"7.75 inch axle","8 inch axle","8.5 inch axle"};
    private JComboBox<String> truckList;
    private JPanel wheelPanel;
    private final String[] wheels = {"51 mm","55 mm","58 mm","61 mm"};
    private JComboBox<String> wheelList;
    private double total=0;
    private int deckTotal=0;
    private int truckTotal=0;
    private int wheelTotal=0;

    public SkateboardDesign() {
        setTitle("Joe's Automotive");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout() );

        buildDeckPanel();
        buildTruckPanel();
        buildWheelPanel();

        add(deckPanel, BorderLayout.EAST);
        add(truckPanel, BorderLayout.NORTH);
        add(wheelPanel, BorderLayout.WEST);

        pack();
        setVisible(true);
    }
    private void buildDeckPanel() {
          deckPanel = new JPanel();
          deckList = new JComboBox<String>(decks);
          deckList.addActionListener(new deckListener());
          deckPanel.add(deckList);
     }
    private void buildTruckPanel() {
          truckPanel = new JPanel();
          truckList = new JComboBox<String>(trucks);
          truckList.addActionListener(new truckListener());
          truckPanel.add(truckList);
    }
    private void buildWheelPanel() {
          wheelPanel = new JPanel();
          wheelList = new JComboBox<String>(wheels);
          wheelList.addActionListener(new wheelListener());
          wheelPanel.add(wheelList);
     }
    private class deckListener implements ActionListener {
         public void actionPerformed(ActionEvent e) {
             String selection = (String) deckList.getSelectedItem();
             if(selection.equals("The master thrasher")) {
                 deckTotal=60;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else if(selection.equals("The dictator")) {
                 deckTotal=45;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else {
                 deckTotal=50;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }
        }
    }
    private class truckListener implements ActionListener {
         public void actionPerformed(ActionEvent e) {
             String selection = (String) truckList.getSelectedItem();
             if(selection.equals("7.75 inch axle")) {
                 truckTotal=35;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else if(selection.equals("8 inch axle")) {
                 truckTotal=40;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else {
                 truckTotal=45;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }
        }
    }
    private class wheelListener implements ActionListener {
         public void actionPerformed(ActionEvent e) {
             String selection = (String) wheelList.getSelectedItem();
             if(selection.equals("51 mm")) {
                 wheelTotal=20;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else if(selection.equals("55 mm")) {
                 wheelTotal=22;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else if(selection.equals("58 mm")){
                 wheelTotal=24;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }else {
                 wheelTotal=61;
                 total=deckTotal+truckTotal+wheelTotal;
                 System.out.println(total);
             }
        }
    }
    public static void main(String[] args) {
        new SkateboardDesign();
    }
}