Difference between windowActivated and windowFocusGained

Question

What\'s the main difference between the method windowActivated (implemented from WindowListener) and windowGainedFocus (implemented from WindowFocusListener)?

The Java d

Answer 1

From How to Write Window Listeners which reflects the quote in your question aswell:

windowActivated(WindowEvent) and windowDeactivated(WindowEvent):

Called just after the listened-to window is activated or deactivated, respectively. These methods are not sent to windows that are not frames or dialogs. For this reason, the windowGainedFocus and windowLostFocus methods to determine when a window gains or loses the focus are preferred.

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So windowActivated is only executed when the window is a frame or dialog, while the windowGainedFocus is for all types.