java+swing通讯录管理系统

Java Swing 是一个用于 Java GUI 编程的工具包，可以帮助您创建漂亮、直观的用户界面。下面是一个简单的通讯录管理系统的示例代码：

1. 创建通讯录管理系统的 GUI 界面

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class AddressBookGUI extends JFrame implements ActionListener {
    // GUI 组件
    private JTextField nameTextField, phoneTextField, emailTextField;
    private JButton addButton, updateButton, deleteButton, clearButton;
    private JList contactsList;

    public AddressBookGUI() {
        // 设置 GUI 界面
        setTitle("通讯录管理系统");
        setSize(400, 300);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);

        // 创建 GUI 组件
        JPanel inputPanel = new JPanel(new GridLayout(3, 2));
        inputPanel.add(new JLabel("姓名："));
        nameTextField = new JTextField();
        inputPanel.add(nameTextField);
        inputPanel.add(new JLabel("电话："));
        phoneTextField = new JTextField();
        inputPanel.add(phoneTextField);
        inputPanel.add(new JLabel("邮箱："));
        emailTextField = new JTextField();
        inputPanel.add(emailTextField);

        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
        addButton = new JButton("添加");
        addButton.addActionListener(this);
        updateButton = new JButton("修改");
        updateButton.addActionListener(this);
        deleteButton = new JButton("删除");
        deleteButton.addActionListener(this);
        clearButton = new JButton("清空");
        clearButton.addActionListener(this);
        buttonPanel.add(addButton);
        buttonPanel.add(updateButton);
        buttonPanel.add(deleteButton);
        buttonPanel.add(clearButton);

        contactsList = new JList();
        JScrollPane scrollPane = new JScrollPane(contactsList);

        // 将 GUI 组件添加到 JFrame 中
        add(inputPanel, BorderLayout.NORTH);
        add(scrollPane, BorderLayout.CENTER);
        add(buttonPanel, BorderLayout.SOUTH);

        setVisible(true);
    }

    // 实现 ActionListener 接口的 actionPerformed 方法
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == addButton) {
            // 添加联系人
        } else if (e.getSource() == updateButton) {
            // 修改联系人
        } else if (e.getSource() == deleteButton) {
            // 删除联系人
        } else if (e.getSource() == clearButton) {
            // 清空输入框
            nameTextField.setText("");
            phoneTextField.setText("");
            emailTextField.setText("");
        }
    }

    public static void main(String[] args) {
        new AddressBookGUI();
    }
}

2. 创建联系人类

public class Contact {
    private String name;
    private String phone;
    private String email;

    public Contact(String name, String phone, String email) {
        this.name = name;
        this.phone = phone;
        this.email = email;
    }

    // getter 和 setter 方法
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    // 重写 toString 方法
    public String toString() {
        return name + " " + phone + " " + email;
    }
}

3. 在 GUI 中添加联系人

public void actionPerformed(ActionEvent e) {
    if (e.getSource() == addButton) {
        // 获取输入框中的信息
        String name = nameTextField.getText();
        String phone = phoneTextField.getText();
        String email = emailTextField.getText();

        // 创建 Contact 对象并添加到 JList 中
        Contact contact = new Contact(name, phone, email);
        DefaultListModel model = (DefaultListModel) contactsList.getModel();
        model.addElement(contact);

        // 清空输入框
        nameTextField.setText("");
        phoneTextField.setText("");
        emailTextField.setText("");
    }
}

4. 更新联系人信息

public void actionPerformed(ActionEvent e) {
    if (e.getSource() == updateButton) {
        // 获取选中的联系人
        int index = contactsList.getSelectedIndex();
        if (index == -1) {
            JOptionPane.showMessageDialog(this, "请选择一个联系人");
            return;
        }

        // 获取输入框中的信息并更新联系人
        String name = nameTextField.getText();
        String phone = phoneTextField.getText();
        String email = emailTextField.getText();
        Contact contact = new Contact(name, phone, email);
        DefaultListModel model = (DefaultListModel) contactsList.getModel();
        model.set(index, contact);

        // 清空输入框
        nameTextField.setText("");
        phoneTextField.setText("");
        emailTextField.setText("");
    }
}

5. 删除联系人

public void actionPerformed(ActionEvent e) {
    if (e.getSource() == deleteButton) {
        // 获取选中的联系人并从 JList 中删除
        int index = contactsList.getSelectedIndex();
        if (index == -1) {
            JOptionPane.showMessageDialog(this, "请选择一个联系人");
            return;
        }
        DefaultListModel model = (DefaultListModel) contactsList.getModel();
        model.remove(index);

        // 清空输入框
        nameTextField.setText("");
        phoneTextField.setText("");
        emailTextField.setText("");
    }
}

这是一个简单的通讯录管理系统，您可以根据需求进行扩展。