* COMPATIBILITY NOTE: This version of DrawingPanel requires Java 8 or higher. * If you need a version that works on Java 7 or lower, please see our * web site at http ...

1 - This program is showing the basics of a JPanel that we can use in this regard to have different parts on our Container. 2 - then we make an array of Buttons and we set its size to 5 as we want 5 ...