用户注册2

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;


public class Text extends JFrame implements ActionListener,TextListener

{

private JLabel username,password,email,telephone;

private JTextField usernameField,emailField;

private TextField teleField;

private JPasswordField passwordField;

private JButton registButton,cancelButton;


public Text()

{

super("用户注册");

Container container = getContentPane();

container.setLayout(new FlowLayout());

username = new JLabel("用户名");

username.setToolTipText("请输入用户名");

password = new JLabel("密 码");

password.setToolTipText("密码不能少于6位");

email = new JLabel("邮 箱");

email.setToolTipText("邮箱中必须包含@字符");

telephone = new JLabel("电 话");

telephone.setToolTipText("电话只能为数字");

usernameField = new JTextField(15);

usernameField.addActionListener(this);

passwordField = new JPasswordField(15);

passwordField.addActionListener(this);

emailField = new JTextField(15);

emailField.addActionListener(this);

teleField = new TextField(21);

teleField.addActionListener(this);

teleField.addTextListener(this);

registButton = new JButton("注册");

cancelButton = new JButton("取消");

container.add(username);

container.add(usernameField);

container.add(password);

container.add(passwordField);

container.add(email);

container.add(emailField);

container.add(telephone);

container.add(teleField);

container.add(registButton);

container.add(cancelButton);

registButton.addActionListener(this);

cancelButton.addActionListener(this);

setSize(250,200);

setVisible(true);

setResizable(false);

}


public void textValueChanged(TextEvent event)

{

if (event.getSource() == teleField)

{

/*if (!checkNumber(teleField.getText()))

{

JOptionPane.showMessageDialog(this,"电话必须为数字","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

teleField.setText("");

} */

}

}


public void actionPerformed(ActionEvent event)

{

if (event.getSource() == usernameField)

{

if (usernameField.getText().equals(""))

{

JOptionPane.showMessageDialog(null,"用户名不能为空","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

}

}

if (event.getSource() == passwordField)

{

if (passwordField.getPassword().length == 0)

{

JOptionPane.showMessageDialog(this,"密码不能为空","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

}

else if (passwordField.getPassword().length < 6)

{

JOptionPane.showMessageDialog(this,"密码长度不能小于6位","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

passwordField.setText("");

}

}

if (event.getSource() == emailField)

{

if (emailField.getText().indexOf("@") < 0 || emailField.getText().indexOf("@") >= (emailField.getText().len

gth() - 1) || emailField.getText().equals(""))

{

JOptionPane.showMessageDialog(this,"您的邮箱格式不正确","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

emailField.setText("");

}

}

if (event.getSource() == teleField)

{

if (teleField.getText().equals(""))

{

JOptionPane.showMessageDialog(this,"联系电话不能为空","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

}

else if (!checkNumber(teleField.getText()))

{

JOptionPane.showMessageDialog(this,"电话必须为数字","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

teleField.setText("");

}

}

if (event.getSource() == registButton)

{

if (usernameField.getText().equals("") || passwordField.getPassword().length == 0 || emailField.getText().equals("") || teleField.getText().equals(""))

{

JOptionPane.showMessageDialog(this, "您填写的信息不完整","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

usernameField.setText("");

passwordField.setText("");

emailField.setText("");

teleField.setText("");

}

else if (passwordField.getPassword().length < 6)

{

JOptionPane.showMessageDialog(this,"密码长度不能小于6位","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

passwordField.setText("");

}

else if (emailField.getText().indexOf("@") < 0 || emailField.getText().indexOf("@") >= (emailField.getText().length() - 1))

{

JOptionPane.showMessageDialog(this,"您的邮箱格式不正确","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

emailField.setText("");

}

else if (!checkNumber(teleField.getText()))

{

JOptionPane.showMessageDialog(this,"电话必须为数字","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

teleField.setText("");

}

else

JOptionPane.showMessageDialog(this,"恭喜您,注册成功","温馨提示",https://www.wendangku.net/doc/db14302059.html,RMATION_MESSAGE);

}

if (event.getSource() == cancelButton)

{

usernameField.setText("");

passwordField.setText("");

emailField.setText("");

teleField.setText("");

}

}


public boolean checkNumber(String str)

{

for (int i=0;i
{

return false;

}

return true;

}


public static void main(String args[])

{

Text application = new Text();

application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}