What is the name of this kind of Java/Swing interface?

Do 开发者_如何学JAVAyou know what is the name of this layout for Java/Swing? Does the Java library already bring us this or should I do that on my own? If so, could any one of you show some samples?

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Here's the sample code for a Dual JList. This is not a primitive Swing construct, but something you can build using Swing.

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This is not provided by the Java swing library - you would have to roll your own or find a 3rd-party library.

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The commercial JIDE Grids has a DualList (scroll to page bottom for a screenshot).

Generally it's not easy to create a really solid Swing widget. You don't have to use custom UI for DualList, but it still takes a lot of work to get the MVC and UI (under all current LAFs) all working well.

Currently JIDE DualList doesn't support drag-n-drop between the lists, but they promised to add it soon (you can search their forum for DualList if you're a paying customer).

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I think that GridBagLayout is what you are looking for.

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Basically you have 3 JPanels: the first and third are the blank panes and the one in the middle contains two JButtons. GridBagLayout will be a good choice here.

You would want to add some ActionListeners to the two buttons in the middle to control the behaviour.