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I am kind of new to Java, I tried finding an answer for hours but I couldn't. The problem is pretty simple - I create an array of JButton components, and add them to a JFrame using: 

m_Parent.add(this);

And it works.

The problem is, I want the same array to appear in a JInternalFrame I created in the frame. But when I add:

m_Parent.Internal.add(this);

It only shows up in the internal frame, and no longer appears in the frame. Why does this happen? how can I make it appear in both frames?

Andrew Thompson
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Nanis
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  • A component can only have a single parent. So you can't add the same component to two different containers. So you need to create two separate arrays of buttons. – camickr Aug 19 '17 at 19:10
  • As has been asked and answered previously, a Swing component can be added to one and only one container. If you need to add it to multiple, then consider creating a factory method that creates the component that you wish to add to multiple locations. – Hovercraft Full Of Eels Aug 19 '17 at 19:10

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