Move button with mouse pressed

Hello guys.
I'm new here.
I have a problem with my java programming and i'm wondering if you can help.

Write a class (called W6P1.java) that will create the following interface:
3 buttons (one, two, three).
Tips:
- Set size to (300,100);
- Use FlowLayout as the layout manager

Add action listeners to the left button <one> and the right button <three> and add code to rotate the labels of the buttons every time a button is pressed. If the left button is pressed the labels rotate to the left (from <one>, <two>, <three> they will become <two>, <three>, <one>, press it again and they become <three>, <one>, <two>; press it for a third time and they become as before <one> <two> <three>.
Similar operation is required when the right button (<three>) is clicked but this time the rotation will take place right-wise.

I have done this:

Code :

---

import javax.swing.*; 		//for everything that is Jxxx
import java.awt.*; 			//for FlowLayout
import java.awt.event.*;	//for the actionlistener
 
public class W6P1 extends JFrame implements ActionListener
{
	private JButton btn1;
	private JButton btn2;
	private JButton btn3;
 
 
	public W6P1()
	{
		super("Work6Part1");
		btn1 = new JButton("One");
		btn2 = new JButton("Two");
		btn3 = new JButton("Three");
 
		btn1 = new FlowLayout(FlowLayout.RIGHT);
 
		setLayout(new FlowLayout());
 
		add(btn1);
		add(btn2);
		add(btn3);	
 
		ButtonHandler handler = new ButtonHandler();
 
		btn1.addActionListener(handler);
		btn2.addActionListener(handler);
		btn3.addActionListener(handler);
	}
	public static void main(String[] args)
	{
		W6P1 window = new W6P1();
		window.setSize(300, 100);
		window.setVisible(true);
		window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
 
	//create the inner class
	private class ButtonHandler implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			if (e.getSource() == btn1)

---

I'm really confused what to do next.
Anyone can help me?

Thanks in advance,

Stavros