My parnter code review

1.建议修改的代码：

public class Jiemian extends JFrame {
 23 
 24     private JPanel contentPane;
 25     
 26     
 27         private JTextField username;
 28         private JTextField email;
 29         private JPasswordField password;
 30         private JLabel man;

意见：这个类的名字太过随意，可能有时候让人不理解

修改如下：

 22 public class interface extends JFrame {
 23 
 24     private JPanel contentPane;
 25     
 26     
 27         private JTextField username;
 28         private JTextField email;
 29         private JPasswordField password;
 30         private JLabel man;

2.建议修改的代码：

150                         switch (n) {
151                    case 0:
152                    JOptionPane.showMessageDialog(button_1,
153                    "用户名：" + name1 + "
" + "性别："  xb + "
" + "电子邮件："  mail + "
" + "爱好：" + role1);
154                         }
155             }
156 
157                 }
158             });

意见：大括号的位置随意摆放，凌乱

修改如下：

150                         switch (n) {
151                     case 0:
152                     JOptionPane.showMessageDialog(button_1,
153                     "用户名：" + name1 + "
" + "性别：" xb + "
" + "电子邮件："  mail + "
" + "爱好：" + role1);
154             }
155         }
156 
157      }
158    });

3.建议修改的代码：

                        switch (n) {
151               case 0:
152               JOptionPane.showMessageDialog(button_1,
153               "用户名：" + name1 + "
" + "性别：" xb + "
" + "电子邮件："  mail + "
" + "爱好：" + role1);
154                         }
155             }
156 

意见：行的长度，缩进有问题，看着不舒服，还有符号也漏掉了

修改如下：

                             switch (n) {
151                          case 0:
152                             JOptionPane.showMessageDialog(button_1,
153                             "用户名：" + name1 + "
" + "性别：" + xb + "
" + "电子邮件：" + mail + "
" + "爱好：" + role1);
154                         }
155             }
156