摘要：
1 awt 1atDimensionscreenSize=Toolkit.getDefaultToolkit（）.getScreenSize（）；doublewidth=screenSize.getWidth（）；doubleheight=screenSize.getHeight（）；2javafxRectangle2DscreenRectangle=屏幕.getPrimary（）.getBound
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double width = screenSize.getWidth();
double height = screenSize.getHeight();
Rectangle2D screenRectangle = Screen.getPrimary().getBounds();
double width = screenRectangle.getWidth();
double height = screenRectangle.getHeight();