Untitled

/**
 * @(#)HelloTester.java
 *
 *
 * @author 
 * @version 1.00 2007/4/1
 */

/** File HelloTester.java */ 
import javax.swing.JFrame; 

public class HelloTester 
{ 
    public static void main(String args[]) 
    { 
        JFrame frame = new HelloFrame(); 
        createSouthPanel();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
        frame.setTitle("HelloTester"); 
        frame.setVisible(true); 
    } 
} 



/** File HelloFrame.java */ 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.*; 
import java.awt.BorderLayout; 
import java.awt.Font; 

public class HelloFrame extends JFrame 
{ 
    public HelloFrame() 
    { 
        message = "Hello, World!"; 
        label = new JLabel(message); 
        label.setFont(new Font("serif", Font.PLAIN, DEFAULT_SIZE)); 
        add(label, BorderLayout.CENTER); 
        add(southPanel, BorderLayout.SOUTH);
        setSize(FRAME_WIDTH, FRAME_HEIGHT); 
    } 
    
    public void createSouthPanel ()
    {
    	smallerButton = new JButton("Smaller");
		largerButton = new JButton("Larger");	
			
		southPanel = new JPanel();
		southPanel.add(smallerButton);
		southPanel.add(largerButton);
    }
    
    private String message;
    private JLabel label;
    private JPanel southPanel;
    private JButton smallerButton;
	private JButton largerButton; 
    private static int FRAME_WIDTH = 300;
    private static int FRAME_HEIGHT = 300;
    private static int DEFAULT_SIZE = 20;
} 



cannot find symbol method createSouthPanel()