import java.awt.*;
import java.awt.event.*;
import java.awt.event.MouseEvent.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import java.util.*;
import javax.swing.*;
 
public abstract class MouseCursor extends JFrame implements MouseMotionListener
{
 
	public MouseCursor (MouseEvent event)
	{
		if (event.getPoint() == null)
		{
		setCursor(Cursor.getDefaultCursor());
		}
		else
		setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
	}
 
	/**
	   A frame containing a panel for testing mouse operations
	*/
 
 
}
 
 
 

public interface MouseListener extends EventListener