[RESOLVED] Adding more than one JPanel to my JFrame(North,South)

[chdboy]

I want to add two Jpanel on my tabbed pane ,one should be in south with buttons,and other should be in north where I have Text fields and Labels.
My problem is that the buttons on container Jpanel is not showing in south.

Here is the code

public class Mainframe extends JFrame
{	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	JTabbedPane tabbedPane = new JTabbedPane();
    JPanel jp1 = new JPanel();    
    JPanel container = new JPanel();
    JFrame frame = new JFrame("TEST");     
    JButton button1 = new JButton("Button 1");
    JButton button2 = new JButton("Button 2");
    JButton button3 = new JButton("Button 3");
    JButton button4 = new JButton("Button 4");
    JButton button5 = new JButton("Button 5");
	/**
	 * @param args
	 */
	private Mainframe()
	{	
		
		Container contentPane = getContentPane();
		container.setLayout(new FlowLayout());				
		BufferedImage myPicture = null;
		try
		{			
			myPicture = ImageIO.read(new File("FINAL.jpg"));
		} 
		catch (IOException e1)
		{
			
			e1.printStackTrace();
		}		
		
		JLabel lbl = new JLabel(new ImageIcon(myPicture));		
		container.add(lbl);
		container.add(button1);
		container.add(button2);
		container.add(button3);
		container.add(button4);
		container.add(button5);
		jp1.add(container,BorderLayout.SOUTH);
                frame.add(tabbedPane);
		tabbedPane.addTab("First Tab",jp1);	
	frame.setPreferredSize(new Dimension(1500, 1210));

        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.pack();
        frame.setResizable(true);
        frame.setVisible(true);

}
}

EDIT:
I think I have to set a layout manager to jp1,and I did not ,that was my mistake.