Java: How can I disable clicking on a panel while showing dialog?

I want to disable clicking on the background panel or frame while showing a dialogue. And I want the dialogue t开发者_如何学Co appear on top of this panel or frame constantly until it is closed.

How can I do this?

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Make Dialog/JDialog modal by calling dialog.setModal(true);. This will solve both issues of clicking background panel and remaining on top of panel.

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It seems like this method is obsolete so better you should use dialog.setModalityType(Dialog.ModalityType type)

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You can use JOptionPane for the message dialog.