6. Using JPanel instead of the default content panel

• 
  package pckg;
  
  import javax.swing.*;
  import javax.swing.event.*;
  import javax.swing.border.*;
  import javax.swing.text.*;
  import java.awt.BorderLayout;
  
  public class SwingMain
  {
      public static void main(String args [])
      {
          JFrame frame = new JFrame("JFrame is me");
          frame.setBounds(0, 0, 400, 300);
          frame.setDefaultCloseOperation( javax.swing.WindowConstants.EXIT_ON_CLOSE );
  
          // Create content JPanel
          JPanel contentPane = new JPanel( new BorderLayout() );
          Border border = BorderFactory.createEtchedBorder();
          border = BorderFactory.createTitledBorder( border, "My Title");
          contentPane.setBorder( border );
          frame.setContentPane( contentPane );
  
           // add button to layout:
          JButton button = new JButton( "Hello" );
          frame.getContentPane().add(button);
  
          frame.setVisible(true);
      } //main
  } //SwingMain