Java SE (Java Platform, Standard Edition)

Hello all
I have an application where it needs to play 4 different short wave files on some events. The wave files are small (less then 1 sec each) so they can be preloaded into memory. But I don't really know how to do that.. This is my current code... Performance is really important here, so the faster users can hear the sounds, the better...

import java.io.*;
import javax.sound.sampled.*;
import javax.swing.*;
import java.awt.event.*;

public class PlaySound implements ActionListener
{
	private Clip clip = null;
		
	public void play(String name)
	{
		if (clip != null)
		{
			clip.stop();
			clip = null;
		}
		loadClip(name);
		clip.start();
	}
	
	private void loadClip(String fnm)
	{
		try 
		{
			AudioInputStream stream = AudioSystem.getAudioInputStream(new File(fnm + ".wav"));
			AudioFormat format = stream.getFormat();
			DataLine.Info info = new DataLine.Info(Clip.class, format);
			if (!AudioSystem.isLineSupported(info)) 
			{
				JOptionPane.showMessageDialog(null, "Unsupported sound line", "Warning!", JOptionPane.WARNING_MESSAGE);
			}
			else
			{
				clip = (Clip) AudioSystem.getLine(info);
				clip.open(stream);
				stream.close();
			}
		}
		
		catch (Exception e) 
		{
			JOptionPane.showMessageDialog(null, "loadClip E: " + e.toString(), "Warning!", JOptionPane.WARNING_MESSAGE);
		}
	}
	
	public static void main(String[] args)
	{
		play("a wav file name");
	}
}	

I would appreciate it if someone can point out how I can preload them to improve performance... Thanks in advance!