1 awt
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double width = screenSize.getWidth();
double height = screenSize.getHeight();
2 javafx
Rectangle2D screenRectangle = Screen.getPrimary().getBounds();
double width = screenRectangle.getWidth();
double height = screenRectangle.getHeight();
来源:oschina
链接:https://my.oschina.net/u/4231975/blog/4296578