Border 예제입니다.

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

class CheckBoxHandler implements ItemListener
{
	JRadioButton btn1;
	JRadioButton btn2;
	JRadioButton btn3;
	
	public CheckBoxHandler(JRadioButton b1, JRadioButton b2, JRadioButton b3)
	{
		btn1=b1;
		btn2=b2;
		btn3=b3;
	}
	
	public void itemStateChanged(ItemEvent e)
	{
		if(e.getStateChange()==ItemEvent.SELECTED)
		{
			btn1.setEnabled(true);
			btn2.setEnabled(true);
			btn3.setEnabled(true);
		}
		else
		{
			btn1.setEnabled(false);
			btn2.setEnabled(false);
			btn3.setEnabled(false);
		}
	}
}

class FirstSwing
{
	public static void main(String[] args)
	{
		JFrame frm = new JFrame("Border");
		frm.setBounds(120, 120, 200, 200);
		frm.setLayout(new FlowLayout());
		
		JCheckBox checkBox = new JCheckBox("Are you a programmer");
		
		JRadioButton rbtn1 = new JRadioButton("I like C");
		JRadioButton rbtn2 = new JRadioButton("I like C++");
		JRadioButton rbtn3 = new JRadioButton("I like Java", true);
		
		ButtonGroup bGroup = new ButtonGroup();
		bGroup.add(rbtn1);
		bGroup.add(rbtn2);
		bGroup.add(rbtn3);
		
		
		Border rbtnBorder = BorderFactory.createEtchedBorder();
		rbtnBorder = BorderFactory.createTitledBorder(rbtnBorder, "Language");
		
		JPanel rbtBorderPanel = new JPanel();
		rbtBorderPanel.setLayout(new GridLayout(0,1));
		rbtBorderPanel.setBorder(rbtnBorder);
		
		rbtBorderPanel.add(rbtn1);
		rbtBorderPanel.add(rbtn2);
		rbtBorderPanel.add(rbtn3);
		
		checkBox.addItemListener(new CheckBoxHandler(rbtn1, rbtn2, rbtn3));
		frm.add(checkBox); frm.add(rbtBorderPanel);
		
		rbtn1.setEnabled(false);
		rbtn2.setEnabled(false);
		rbtn3.setEnabled(false);
		
		rbtn1.addItemListener(
				new ItemListener(){
					public void itemStateChanged(ItemEvent e)
					{
						if(e.getStateChange()== ItemEvent.SELECTED)
							System.out.println("I like C too");
					}
				}
		);
		
		rbtn2.addItemListener(
				new ItemListener(){
					public void itemStateChanged(ItemEvent e)
					{
						if(e.getStateChange()== ItemEvent.SELECTED)
							System.out.println("I like C++ too");
					}
				}
		);
		
		rbtn3.addItemListener(
				new ItemListener(){
					public void itemStateChanged(ItemEvent e)
					{
						if(e.getStateChange()== ItemEvent.SELECTED)
							System.out.println("I like Java too");
					}
				}
		);
		
		frm.setVisible(true);
		frm.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

	}
}

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