javaswing快递管理系统

下面是一个简单的 Java Swing 快递管理系统的示例代码：

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

public class ExpressManagementSystem extends JFrame {
    private JLabel nameLabel;
    private JTextField nameField;
    private JLabel phoneLabel;
    private JTextField phoneField;
    private JLabel addressLabel;
    private JTextField addressField;
    private JButton addButton;
    private DefaultListModel<String> expressModel;
    private JList<String> expressList;

    public ExpressManagementSystem() {
        setTitle("快递管理系统");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建姓名标签和文本框
        nameLabel = new JLabel("姓名：");
        nameField = new JTextField(10);

        // 创建手机号码标签和文本框
        phoneLabel = new JLabel("手机号码：");
        phoneField = new JTextField(10);

        // 创建地址标签和文本框
        addressLabel = new JLabel("地址：");
        addressField = new JTextField(30);

        // 创建添加按钮
        addButton = new JButton("添加");
        addButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String name = nameField.getText();
                String phone = phoneField.getText();
                String address = addressField.getText();
                if (name.trim().length() > 0 && phone.trim().length() > 0 && address.trim().length() > 0) {
                    String express = name + " " + phone + " " + address;
                    expressModel.addElement(express);
                    nameField.setText("");
                    phoneField.setText("");
                    addressField.setText("");
                } else {
                    JOptionPane.showMessageDialog(ExpressManagementSystem.this, "请填写完整信息！");
                }
            }
        });

        // 创建快递列表
        expressModel = new DefaultListModel<>();
        expressList = new JList<>(expressModel);
        expressList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        // 将组件添加到窗口中
        Container contentPane = getContentPane();
        contentPane.setLayout(new BorderLayout());
        JPanel inputPanel = new JPanel();
        inputPanel.setLayout(new GridLayout(3, 2));
        inputPanel.add(nameLabel);
        inputPanel.add(nameField);
        inputPanel.add(phoneLabel);
        inputPanel.add(phoneField);
        inputPanel.add(addressLabel);
        inputPanel.add(addressField);
        contentPane.add(inputPanel, BorderLayout.NORTH);
        contentPane.add(new JScrollPane(expressList), BorderLayout.CENTER);
        contentPane.add(addButton, BorderLayout.SOUTH);

        // 设置窗口大小并居中显示
        setSize(500, 300);
        setLocationRelativeTo(null);
    }

    public static void main(String[] args) {
        ExpressManagementSystem expressManagementSystem = new ExpressManagementSystem();
        expressManagementSystem.setVisible(true);
    }
}

这个程序界面包含三个输入框（姓名、手机号码、地址）、一个添加按钮和一个快递列表。当用户在输入框中填写完整信息并点击添加按钮时，程序会将快递信息添加到快递列表中。