package app;import javax.swing.UIManager;import java.awt.*;/** * <p>Title: 個人日常事務管理系統</p> * <p>Description: 用于個人管理</p> * <p>Copyright: Copyright (c) 2003</p> * <p>Company: </p> * @author unascribed * @version 1.0 */public class Application1 {  private boolean packFrame1 = false;  private boolean packFrame = false;  //Construct the application  public Application1() {    AppFrame frame = new AppFrame();     LogFrame frame1 = new LogFrame(frame);     frame1.setSize(400,300);     if (packFrame1) {      frame1.pack();    }    else {      frame1.validate();    }    Dimension screenSize1 = Toolkit.getDefaultToolkit().getScreenSize();    Dimension frameSize1 = frame1.getSize();    if (frameSize1.height > screenSize1.height) {      frameSize1.height = screenSize1.height;    }    if (frameSize1.width > screenSize1.width) {      frameSize1.width = screenSize1.width;    }    frame1.setLocation((screenSize1.width - frameSize1.width) / 2, (screenSize1.height - frameSize1.height) / 2);    frame1.setVisible(true);    //Validate frames that have preset sizes    //Pack frames that have useful preferred size info, e.g. from their layout    if (packFrame) {      frame.pack();    }    else {      frame.validate();    }    //Center the window    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();    Dimension frameSize = frame.getSize();    if (frameSize.height > screenSize.height) {      frameSize.height = screenSize.height;    }    if (frameSize.width > screenSize.width) {      frameSize.width = screenSize.width;    }    frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);    frame.setVisible(false);  }  //Main method  public static void main(String[] args) {    try {      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());    }    catch(Exception e) {      e.printStackTrace();    }    new Application1();  }}