package baseinforinterface;import java.awt.*;import java.awt.event.*;import javax.swing.*;import data.StockManagementData;import user.User;import maininterface.*;public class ChangePasswordFrame extends JFrame implements ActionListener {  JPanel contentPane;  JLabel jLabel1 = new JLabel();  JLabel jLabel2 = new JLabel();  JLabel jLabel3 = new JLabel();  JPasswordField jPasswordField1 = new JPasswordField();  JPasswordField jPasswordField2 = new JPasswordField();  JPasswordField jPasswordField3 = new JPasswordField();  JButton jButton1 = new JButton();  JButton jButton2 = new JButton();  //創建字體類  Font dialog13 = new java.awt.Font("Dialog", 0, 13);  //聲明數據類  StockManagementData stockManagementData = null;  //聲明用戶類  User user = null;  //聲明主窗口類  StockManagementMainFrame stockManagementMainFrame = null;  public ChangePasswordFrame(StockManagementMainFrame stockManagementMainFrame) {    this.stockManagementMainFrame = stockManagementMainFrame;    //取得主窗口的數據類    stockManagementData = stockManagementMainFrame.getStockManagementData();    //取得主窗口的用戶類    user = stockManagementMainFrame.getUser();    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }  }  private void jbInit() throws Exception  {    contentPane = (JPanel) this.getContentPane();    //設置窗口面板布局，窗口大小和標題    contentPane.setLayout(null);    this.setSize(new Dimension(400, 300));    this.setTitle("修改密碼窗口");    //設置標簽控件的屬性    jLabel1.setText("舊密碼：");    jLabel1.setBounds(new Rectangle(71, 50, 61, 14));    jLabel2.setText("新密碼：");    jLabel2.setBounds(new Rectangle(71, 95, 56, 16));    jLabel3.setText("確認新密碼：");    jLabel3.setBounds(new Rectangle(71, 137, 99, 16));    //設置密碼編輯框控件的屬性    jPasswordField1.setBounds(new Rectangle(183, 46, 132, 22));    jPasswordField2.setBounds(new Rectangle(183, 89, 132, 22));    jPasswordField3.setBounds(new Rectangle(183, 131, 132, 22));    //設置按鈕的屬性    jButton1.setText("修改密碼");    jButton1.setActionCommand("changePassword");    jButton1.setBounds(new Rectangle(71, 200, 101, 25));    jButton1.addActionListener(this);    jButton2.setText("退出");    jButton2.setActionCommand("exit");    jButton2.setBounds(new Rectangle(214, 200, 101, 25));    jButton2.addActionListener(this);    //為窗口面板加入各個控件    contentPane.add(jLabel1, null);    contentPane.add(jLabel2, null);    contentPane.add(jLabel3, null);    contentPane.add(jPasswordField1, null);    contentPane.add(jPasswordField2, null);    contentPane.add(jPasswordField3, null);    contentPane.add(jButton1, null);    contentPane.add(jButton2, null);    //設置窗口類的字體    setupFont();  }  //設置窗口類的字體  public void setupFont(){    Component[] components = contentPane.getComponents();    for(int i = 0; i < components.length; i++){      components[i].setFont(dialog13);    }  }  protected void processWindowEvent(WindowEvent e) {    if (e.getID() == WindowEvent.WINDOW_CLOSING) {      exit();    }  }  //單擊事件處理代碼  public void actionPerformed(ActionEvent e) {    //取得按鈕的動作字符串    String actionCommand = e.getActionCommand().trim();    //取得舊密碼    String oldUserPassword = new String(jPasswordField1.getPassword());    //取得新密碼    String newUserPassword = new String(jPasswordField2.getPassword());    //取得確認新密碼    String confirmUserPassword = new String(jPasswordField3.getPassword());    if(actionCommand.equals("changePassword")){      //檢查舊密碼是否正確      if(!oldUserPassword.equals(user.getUserPassword())){        JOptionPane.showMessageDialog(null, "舊密碼輸入錯誤.");        return;      }else{        //檢查新密碼是否為空        if(newUserPassword.trim().length() == 0){          JOptionPane.showMessageDialog(null, "新密碼不能為空.");          return;        }        //檢查新密碼和確認新密碼是否相同        if(!newUserPassword.equals(confirmUserPassword)){          JOptionPane.showMessageDialog(null, "新密碼和確認新密碼不相同.");          return;        }        //設置用戶類的密碼        user.setUserPassword(newUserPassword);        //更改用戶類的密碼        stockManagementData.updateUser(user);        //將用戶類傳入主窗口        stockManagementMainFrame.setUser(user);      }      JOptionPane.showMessageDialog(null, "成功修改密碼.");      exit();    }    if(actionCommand.equals("exit")){      exit();    }  }  //退出方法  public void exit(){    //將輸入框的值設為空值    jPasswordField1.setText("");    jPasswordField2.setText("");    jPasswordField3.setText("");    //隱藏窗口    this.setVisible(false);  }  //設置用戶的方法  public void setUser(User user) {    this.user = user;  }}