package baseinforinterface;import javax.swing.UIManager;import java.awt.*;import maininterface.*;public class ChangePasswordApp {  public ChangePasswordApp() {    //創(chuàng)建主窗口類，該類供測試使用    StockManagementMainFrame stockManagementMainFrame = new StockManagementMainFrame();    //創(chuàng)建用戶類    user.User user = new user.User("jack", "jack", 0, 0, 0, 0);    //設(shè)置主窗口的用戶類    stockManagementMainFrame.setUser(user);    ChangePasswordFrame frame = new ChangePasswordFrame(stockManagementMainFrame);    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(true);  }  public static void main(String[] args) {    try {      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());    }    catch(Exception e) {      e.printStackTrace();    }    new ChangePasswordApp();  }}