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

public class QuoteGUI
{
	private final int  WIDTH = 300, HEIGHT = 100;
	private JPanel primary;
	private JLabel quote;
	private JRadioButton comedy, philosophy, carpentry;
	private String comedyQuote = "Take my wife, please.";
	private String philosophyQuote = "I think, therefore I am.";
	private String carpentryQuote = "Measure twice. Cut once.";
	
	public QuoteGUI()
	{
		quote = new JLabel (comedyQuote);
		quote.setFont (new Font ("Helvetica", Font.BOLD, 24));
		
		comedy = new JRadioButton ("Comedy", true);
		comedy.setBackground (Color.green);
		philosophy = new JRadioButton ("Philosophy");
		philosophy.setBackground (Color.green);
		carpentry = new JRadioButton ("Carpentry");
		carpentry.setBackground (Color.green);
		
		ButtonGroup group = new ButtonGroup();
		group.add (comedy);
		group.add (philosophy);
		group.add (carpentry);
		
		QuoteListener listener = new QuoteListener();
		comedy.addActionListener(listener);
		philosophy.addActionListener(listener);
		carpentry.addActionListener(listener);
		
		primary = new JPanel();
		primary.add (quote);
		primary.add (comedy);
		primary.add (philosophy);
		primary.add (carpentry);
		primary.setBackground (Color.green);
		primary.setPreferredSize (new Dimension(WIDTH, HEIGHT));
		
	
	}
	
	public JPanel getPanel()
	{
		return primary;
	}
	
	private class QuoteListener implements ActionListener
	{
		public void actionPerformed (ActionEvent event)
		{
		
			Object source = event.getSource();
		
			if (source == comedy)
				quote.setText(comedyQuote);
			else
				if(source == philosophy)
					quote.setText (philosophyQuote);
				else
					quote.setText(carpentryQuote);
		}		
	}
}



import javax.swing.*;
public class QuoteOptions
{
	public static void main(String[] args)
	{
		JFrame quoteFrame = new JFrame ("Quote Options");
		quoteFrame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
		
		QuoteGUI gui = new QuoteGUI();
		quoteFrame.getContentPane().add (gui.getPanel());
		
		quoteFrame.pack();
		quoteFrame.show();
	}
}