java - WindowEvent without specification? - 


betrachterfxmlcontroller controller = loader<betrachterfxmlcontroller>getcontroller(); eventhandler<windowevent> h;         h = (windowevent event) -> {             event.consume();             controller.end();         };

i see type of eventhandler first time. supposed is, should tell controller close program (end() calls platform.exit) when x @ top clicked. due fact gui has multiple windows , windows should closed when main window closed.

what don't why eventhandler waits random(?) windowevent. doesn't has specified windowevent handles?


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