23. GridLayout and Radio Buttons

• GridLayout class arranges swing components in tabular format:

  
      // Use grid with 2 rows and one column:
      this.setLayout(new GridLayout(2, 1));
      this.getContentPane().add(mRadioPanel);
      this.getContentPane().add(mMainPanel);
      this.pack(); // Auto-arrange frame layout
  
  

• The following example demonstrates FrameRadioButtons class with two panels. GroupRadioButtons panel contains the radio buttons; another panel contains the push buttons, Change Color and Quit.

  • A8/application/FrameRadioButtons.java ( download ).