java:取屏幕大小(去掉任务栏的高度部分)

Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();

Insets   screenInsets   =   Toolkit.getDefaultToolkit().getScreenInsets(frame.getGraphicsConfiguration());   
   Rectangle   desktopBounds   =   new   Rectangle(   
                    screenInsets.left,   screenInsets.top,     
                    screenSize.width   -   screenInsets.left   -   screenInsets.right,   
                    screenSize.height   -   screenInsets.top   -   screenInsets.bottom);