用菜单形式作的Java文本编辑器。功能类似于Windows下的记事本。供Java开发者学习菜单用。-menu form using Java for the text editor. Similar to the function of the Windows Notepad. For Java developers to learn menu.

用java实现一个简单的记事本，包含基本的复制、粘贴、撤销等功能-Use java to implement a simple notepad that contains the basic copy, paste, undo, etc.