JMyNewHome

/**
 * @(#)JMyNewHome.java
 *Use seperate ButtonGroups to allow the customer
 *to select one of four models, the number of bedrooms
 *and a garage type, then show the total cost of all of these.
 *
 * @author Long Nguyen
 * @version 1.00 2017/1/13
 */

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

public class JMyNewHome extends JFrame
{
	public static void main (String []args)
	{
		JMyNewHome window = new JMyNewHome();
		window.setVisible(true);
	}
	private JLabel label2 = new JLabel("0");
	private JCheckBox check1 = new JCheckBox("Aspen - $100,000");
	private JCheckBox check2 = new JCheckBox("Brittany - $120,000");
	private JCheckBox check3 = new JCheckBox("Colonial - $180,000");
	private JCheckBox check4 = new JCheckBox("Dartmoor - $250,000");
	private JCheckBox check5 = new JCheckBox("2 Bed - $21,000");
	private JCheckBox check6 = new JCheckBox("3 Bed - $31,500");
	private JCheckBox check7 = new JCheckBox("4 Bed - $42,000");
	private JCheckBox check8 = new JCheckBox("0 Car - $0");
	private JCheckBox check9 = new JCheckBox("1 Car - $7,775");
	private JCheckBox check10 = new JCheckBox("2 Car - $15,550");
	private JCheckBox check11 = new JCheckBox("3 Car - $23,325");
	private Container pane = getContentPane();
	public JMyNewHome()
	{
		setTitle("New Home");
		setSize(750,300);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		pane.setLayout(new GridLayout(4,1));
		ButtonGroup group1 = new ButtonGroup();
		ButtonGroup group2 = new ButtonGroup();
		ButtonGroup group3 = new ButtonGroup();
		JLabel label1 = new JLabel("Total Cost = $");
		JPanel panel1 = new JPanel();
		JPanel panel2 = new JPanel();
		JPanel panel3 = new JPanel();
		JPanel panel4 = new JPanel();
		panel1.setLayout(new GridLayout(1,4));
		panel2.setLayout(new GridLayout(1,3));
		panel3.setLayout(new GridLayout(1,4));
		panel4.setLayout(new FlowLayout());
		pane.add(panel1);
		pane.add(panel2);
		pane.add(panel3);
		pane.add(panel4);
		group1.add(check1);
		group1.add(check2);
		group1.add(check3);
		group1.add(check4);
		panel1.add(check1);
		panel1.add(check2);
		panel1.add(check3);
		panel1.add(check4);
		group2.add(check5);
		group2.add(check6);
		group2.add(check7);
		panel2.add(check5);
		panel2.add(check6);
		panel2.add(check7);
		group3.add(check8);
		group3.add(check9);
		group3.add(check10);
		group3.add(check11);
		panel3.add(check8);
		panel3.add(check9);
		panel3.add(check10);
		panel3.add(check11);
		panel4.add(label1);
		panel4.add(label2);
		HomeButtonListener homeListener = new HomeButtonListener();
		check1.addActionListener(homeListener);
		check2.addActionListener(homeListener);
		check3.addActionListener(homeListener);
		check4.addActionListener(homeListener);
		check5.addActionListener(homeListener);
		check6.addActionListener(homeListener);
		check7.addActionListener(homeListener);
		check8.addActionListener(homeListener);
		check9.addActionListener(homeListener);
		check10.addActionListener(homeListener);
		check11.addActionListener(homeListener);
	}
	private class HomeButtonListener implements ActionListener
	{
		private int houseCost = 0;
		private int bedCost = 0;
		private int carCost = 0;
		private int totalCost = 0;
		public void actionPerformed(ActionEvent e)
		{
			if (check1.isSelected())
			{
				houseCost = 100000;
			}
			else if (check2.isSelected())
			{
				houseCost = 120000;
			}
			else if (check3.isSelected())
			{
				houseCost = 180000;
			}
			else if (check4.isSelected())
			{
				houseCost = 250000;
			}
			if (check5.isSelected())
			{
				bedCost = 21000;
			}
			else if (check6.isSelected())
			{
				bedCost = 31500;
			}
			else if (check7.isSelected())
			{
				bedCost = 42000;
			}
			if (check8.isSelected())
			{
				carCost = 0;
			}
			else if (check9.isSelected())
			{
				carCost = 7775;
			}
			else if (check10.isSelected())
			{
				carCost = 15550;
			}
			else if (check11.isSelected())
			{
				carCost = 23325;
			}
			totalCost = houseCost + bedCost + carCost
			label2.setText("" + totalCost);
		}
	}
}