Swing全部组建应用实例
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Swing是Java编程语言中的一个图形用户界面(GUI)工具包,它是Java Foundation Classes (JFC)的一部分。在Swing中,你可以创建丰富的、交互式的桌面应用程序。本篇将深入讲解Swing的全部组建及其应用实例,包括事件处理和布局管理。 1. **组件(Components)**:Swing提供了一系列组件,如按钮(JButton)、文本框(JTextField)、标签(JLabel)、面板(JPanel)、滚动面板(JScrollPane)、菜单(JMenu)、菜单项(JMenuItem)等。这些组件可以组合起来构建复杂的用户界面。 2. **事件处理(Event Handling)**:Swing使用监听器模型来处理用户交互。例如,按钮点击事件可以添加一个ActionListener,当按钮被点击时,就会触发相应的事件处理方法。同样,其他的组件也有各自的事件监听器,如KeyListener用于键盘事件,MouseListener和MouseMotionListener用于鼠标事件。 3. **布局管理(Layout Management)**:Swing提供了多种布局管理器,如FlowLayout、BorderLayout、GridLayout、CardLayout和GridBagLayout。这些布局管理器帮助我们组织组件在窗口中的排列方式。例如,FlowLayout按顺序放置组件,BorderLayout将组件分为北、南、东、西、中五个区域,GridLayout则按行和列均匀分布组件。 4. **自定义组件(Custom Components)**:除了内置的组件,Swing还允许开发人员创建自己的组件,通过继承JComponent或JPanel类,并重写paintComponent()方法来实现自定义的绘制逻辑。 5. **模型-视图-控制器(MVC)**:Swing的组件设计遵循MVC模式,使得代码结构清晰,易于维护。比如,JTable组件就包含了TableModel、TableColumnModel和TableView三个部分,分别对应数据模型、列模型和视图。 6. **可装饰性(Decorations)**:Swing提供了轻量级组件,与AWT相比,它们不依赖于操作系统的GUI,因此可以在任何平台上保持一致的外观。此外,Swing还支持LookAndFeel,可以更改应用程序的整体风格,使其看起来像是原生的应用程序。 7. **国际化(Internationalization)**:Swing支持多语言环境,可以轻松地为不同地区的用户提供本地化的界面。 8. **对话框(Dialogs)**:Swing提供了一些预定义的对话框,如JOptionPane,用于显示警告、确认、输入等信息。开发者还可以自定义JDialog来创建更复杂的对话框。 9. **拖放功能(Drag and Drop)**:Swing支持组件之间的拖放操作,使得用户可以通过直观的交互方式移动数据。 10. **工具提示(Tooltips)**:组件可以设置工具提示,当鼠标悬停在组件上时,会显示额外的信息。 在提供的"Swing组建应用例子"压缩包中,你将找到各种Swing组件的实例代码,涵盖上述所有知识点。通过学习和运行这些示例,你可以深入理解Swing的工作原理和实际应用,提升你的Java GUI开发能力。
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- 嘿咻傻帽2013-02-17很多有用的例子,不过也有一部分不好用。十分感谢,没有找到日期的例子
- qiufengzhiyun20112013-07-31有些例子不是很好理解!但还是很感谢您的分享!
- lamprosfeiyun2014-03-03感谢楼主,很多实用的小例子
- 小营1232013-12-09很好,很强大,多谢楼主,实例很多也很全。
- 该用户很勤劳2024-11-15东西挺不错,我这人都是善于给人好评
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