textPanel = new JPanel();
     textPanel.setLayout(new GridLayout(3,0));

     fName = new JTextField( 15 ) ;
     textPanel.add(fName);
     jlbName = new JLabel ( "Firstname" );
    jlbName.setHorizontalAlignment(JLabel.RIGHT);
    textPanel.add(jlbName);

     lName = new JTextField( 15 ) ;
    textPanel.add(lName);
    jlbName = new JLabel ( "LastName" );

    jlbName.setHorizontalAlignment(JLabel.RIGHT);
    textPanel.add(jlbName);



    libNo = new JTextField( 15 ) ;
    textPanel.add(libNo);
       libNo.setEditable(false);
    jlbName = new JLabel ( "Library Number" );

    jlbName.setHorizontalAlignment(JLabel.RIGHT);
    textPanel.add(jlbName);


   add(textPanel,BorderLayout.EAST);
   JButton jbtN = new JButton("Add borrower");
   add(jbtN ,BorderLayout.SOUTH);

textPanel.add(fName);
...
textPanel.add(jlbName);
...

textPanel.add(jlbName);
...
textPanel.add(fName);
...