How to open a JFrame

最新推荐文章于 2025-08-22 09:41:25 发布
最新推荐文章于 2025-08-22 09:41:25 发布 · 84 阅读 · 0

本文介绍了一个简单的Java Swing示例，展示了如何使用Action注解来打开一个新的JFrame窗口。通过检查aboutBox实例是否存在来避免重复创建窗口，并将其相对于主窗口进行定位。

How to open a JFrame

@Action public void showAboutBox() { if (aboutBox == null) { JFrame mainFrame = NumberSliderApp.getApplication().getMainFrame(); aboutBox = new NumberSliderAboutBox(mainFrame); aboutBox.setLocationRelativeTo(mainFrame); } NumberSliderApp.getApplication().show(aboutBox); }

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