将jInternalFrame放入主框架中，并使其不可见。然后您可以将它用于进一步的事件。

jInternalFrame.setSize(300,150);
jInternalFrame.setVisible(true);

我只是想知道使用多个jframe是否是好的实践?

糟糕的做法。

User unfriendly: The user sees multiple icons in their task bar when expecting to see only one. Plus the side effects of the coding problems.. A nightmare to code and maintain: A modal dialog offers the easy opportunity to focus attention on the content of that dialog - choose/fix/cancel this, then proceed. Multiple frames do not. A dialog (or floating tool-bar) with a parent will come to front when the parent is clicked on - you'd have to implement that in frames if that was the desired behavior.

在一个GUI中显示多个元素的方法有很多，例如:

CardLayout (short demo.). Good for: Showing wizard like dialogs. Displaying list, tree etc. selections for items that have an associated component. Flipping between no component and visible component. JInternalFrame/JDesktopPane typically used for an MDI. JTabbedPane for groups of components. JSplitPane A way to display two components of which the importance between one or the other (the size) varies according to what the user is doing. JLayeredPane far many well ..layered components. JToolBar typically contains groups of actions or controls. Can be dragged around the GUI, or off it entirely according to user need. As mentioned above, will minimize/restore according to the parent doing so. As items in a JList (simple example below). As nodes in a JTree. Nested layouts.

但是如果这些策略不适用于特定的用例，请尝试以下方法。建立一个主JFrame，然后将JDialog或JOptionPane实例用于其余的自由浮动元素，并使用该框架作为对话框的父元素。

许多图片

在这种情况下，多个元素都是图像，最好使用以下任何一种:

一个单独的JLabel(位于滚动窗格的中心)，用于显示用户当时感兴趣的任何图像。在ImageViewer中可以看到。 单行JList。从这个答案中可以看出。“单行”部分只有在它们都是相同尺寸的情况下才有效。或者，如果你准备在飞行中缩放图像，并且它们都是相同的纵横比(例如4:3或16:9)。

如果这两个帧的大小是相同的，为什么不创建一个帧，然后把它作为引用传递给它呢?

当你通过这个框架时，你可以决定如何填充它。这就像有了一种计算一组数字平均值的方法。你会一遍又一遍地创建这个方法吗?

将jInternalFrame放入主框架中，并使其不可见。然后您可以将它用于进一步的事件。

jInternalFrame.setSize(300,150);
jInternalFrame.setVisible(true);

这是一段时间以来，我最后一次接触摇摆，但一般是一个坏的做法，这样做。我想到的一些主要缺点是:

It's more expensive: you will have to allocate way more resources to draw a JFrame that other kind of window container, such as Dialog or JInternalFrame. Not user friendly: It is not easy to navigate into a bunch of JFrame stuck together, it will look like your application is a set of applications inconsistent and poorly design. It's easy to use JInternalFrame This is kind of retorical, now it's way easier and other people smarter ( or with more spare time) than us have already think through the Desktop and JInternalFrame pattern, so I would recommend to use it.

我认为使用多个jframe不是一个好主意。

相反，我们可以在同一个JFrame中使用多个JPanel。

我们还可以在这些jpanel之间切换。它给了我们在JFrame中显示更多东西的自由。

对于每个JPanel，我们可以设计不同的东西，所有这些JPanel都可以一次显示在单个JFrameone上。

要在这个jpanel之间切换，使用JMenuBar和JMenuItems为每个JPanelor 'JButtonfor每个jpanel '。

多于一个JFrame不是一个好的实践，但是如果我们想要多于一个JFrame也没有什么问题。

但是根据不同的需求更改一个JFrame比使用多个JFrame更好。