java - 从 Java Swing 组件中检索对象

Question

我一直致力于 Java Swing 项目，我需要检索创建面板的对象/实例，以便调用特定于该实例的简单保存方法。

您有一个带有 JTabbedPane 的 JFrame，它具有通过实例化一个构建 JPanel 并将其添加到 JTabbedPane 的类创建的选项卡，我需要从 JTabbedPane 上的选定 JPanel/选项卡中找到特定实例，然后调用它保存方法。

有什么想法吗？感谢您的宝贵时间!

public class frame extends JFrame implements ActionListener{
 Builds a frame dubbed "frame" that is static.
 Builds a static JTabbedPane dubbed "pane"and adds it to the frame.
 Creates a button that creates a new instance of sheet.

 public void actionPerformed(MAGIC!){
  See if a button on the panel has been pressed and uses the currently selected tab to locate the correct instance of sheet to run it's save method.
 }
}

public class sheet extends JPanel{
 In constructor makes a JPanel and adds it to "pane"

 Describes a save method that outputs a variable unique to the instance.
}

Answer 1

我发现我需要做的就是将新的选项卡对象存储在 ArrayList derp 中。感谢你们的尝试，虽然伙计们!