停车场管理界面

public class ShowCenter { /** * 在中间位置显示窗体 * @param frame 要显示的窗体 */ public static void centerShowJFrame(JFrame frame) { //定义工具包:Toolkit.getDefaultToolkit() //获取屏幕的尺寸 Dimension screenSize Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); Dimension frameSize = frame.getSize();//窗口的尺寸 //获得窗口高frameSize.height //获取屏幕的高screenSize.height //如果窗口的高度大于屏幕的高度，则以屏幕的高度为准 if (frameSize.height > screenSize.height) { frameSize.height = screenSize.height; } //获得窗口宽frameSize.width //获取屏幕的宽screenSize.width if (frameSize.width > screenSize.width) { frameSize.width = screenSize.width; } //设置中间位置 frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2); //设置窗口可见 frame.setVisible(true); } public static void centerShowJFrame(JDialog dialog) { //定义工具包:Toolkit.getDefaultToolkit() //获取屏幕的尺寸 Dimension screenSize Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); Dimension frameSize = dialog.getSize();//窗口的尺寸 //获得窗口高frameSize.height //获取屏幕的高screenSize.height //如果窗口的高度大于屏幕的高度，则以屏幕的高度为准 if (frameSize.height > screenSize.height) { frameSize.height = screenSize.height; } //获得窗口宽frameSize.width //获取屏幕的宽screenSize.width if (frameSize.width > screenSize.width) { frameSize.width = screenSize.width; } //设置中间位置 dialog.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2); //设置窗口可见 dialog.setVisible(true); } }