[Ch15] Button1 for all borderlayout regions

  public void go() {

    JFrame frame = new JFrame();

    JButton button = new JButton("Click This!");

    Font bigFont = new Font("serif", Font.BOLD, 28);

    button.setFont(bigFont);

    frame.getContentPane().add(BorderLayout.NORTH, button);

    frame.setSize(200, 200);

    JButton east = new JButton("East");

    JButton west = new JButton("West");

    JButton north = new JButton("North");

    JButton south = new JButton("South");

    JButton center = new JButton("Center");

    frame.getContentPane().add(BorderLayout.EAST, east);

    frame.getContentPane().add(BorderLayout.WEST, west);

    frame.getContentPane().add(BorderLayout.NORTH, north);

    frame.getContentPane().add(BorderLayout.SOUTH, south);

    frame.getContentPane().add(BorderLayout.CENTER, center);

    frame.setSize(300, 300);

    frame.setVisible(true);

  }

}