本程序通过调用JAVA提供的BasicStroke；Button； Color Container Graphics Panel ButtonGroup JFrame JComboBox；JCheckBox；JMenu；JMenuItem；ImageIcon；JPanel UIManager等基本类进行了简单的界面设计。

程序运用了JAVA中类的继承特性实现了对父类方法的调用，运用了ButtonHandler类用来侦听基本按钮的操作；运用ButtonHandler1类侦听颜色选择，画笔粗细设置、文字输入按钮的操作。鼠标事件mouseA类继承了MouseAdapter类，用来完成鼠标的相应事件操作；鼠标事件mouseB类继承了MouseMotionAdapter类，用来完成鼠标拖动和鼠标移动时的相应操作。

-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.