Introduction - If you have any usage issues, please Google them yourself
This procedure provided by calling JAVA BasicStroke Button Color Container Graphics Panel ButtonGroup JFrame JComboBox JCheckBox JMenu JMenuItem ImageIcon JPanel UIManager basic class a simple interface design. Procedures using the JAVA classes inherit properties of the parent class method implements a call, use the ButtonHandler basic button class to listen for the operation use ButtonHandler1 class listening colors, pen thickness settings, text input button operation. Mouse event mouseA class inherits MouseAdapter class, corresponding to the completion of the mouse event operations mouse event mouseB class inherits MouseMotionAdapter class, used to complete the mouse to drag and move the mouse the corresponding operation.