Graphics2D g = (Graphics2D)Toolkit.getDefaultToolkit(). getImage("imgname").getGraphics();// 設置大字體Font font = new Font("楷體", Font.ITALIC | Font.BOLD, 72);g.setFont(font);FontRenderContext context = g.getFontRenderContext();// 獲取字體的像素范圍對象  Rectangle2D stringBounds = font.getStringBounds("text", context);double fontWidth = stringBounds.getWidth();