JLabel in GridLayout

import java.awt.*;
import javax.swing.*;

class SimpleNestedLayout {

    public static void main(String[] args) {
        Runnable r = new Runnable() {

            @Override
            public void run() {
                JPanel gui = new JPanel(new BorderLayout(5,5));

                int sz = 4;
                Container content = new JPanel(new GridLayout(sz, 0, 2, 2));
                for (int f=0; f<sz*sz; f++) {
                    content.add(new JButton());
                }
                gui.add(content, BorderLayout.CENTER);

                Container info = new JPanel(
                        new FlowLayout(FlowLayout.CENTER, 50, 5));
                info.add(new JLabel("Flow"));
                info.add(new JLabel("Layout"));
                gui.add(info, BorderLayout.PAGE_START);

                gui.add(new JLabel("Label"), BorderLayout.LINE_END);

                JOptionPane.showMessageDialog(null, gui);
            }
        };
        SwingUtilities.invokeLater(r);
    }
}

      

        
        
        
      

    

Notes

• For the 8x8 grid, change sz
  
  to 8.
• If said "label" is similar to a shortcut seen in the GUI, it can be in the outer BorderLayout
  
  where Flow

Layout
  
  (the panel itself) appears or Label
  
  , as well as one of two other free positions in the outermost panel gui
  
  .
• Both panels info
  
  ( FlowLayout
  
  ) and content
  
  ( GridLayout
  
  ) can also accept more components as needed.
• Simple examples of other nested layouts.
  • PlayerGui
    
    (31 LOC)
    
  • WestPanel
    
    (30 LOC) not a great example, extends JPanel
    
    instead of just storing an instance, but short.
    
  • AmortizationLayout
    
    (53 LOC) is especially nice as an example as it describes parent and child layouts using a title border.