帮我写出java图形化界面学生信息管理的代码

好的，我可以提供一个简单的Java图形化界面学生信息管理的代码示例，供您参考：

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

public class StudentManagementSystem extends JFrame implements ActionListener {

    private JLabel title, nameLabel, idLabel, majorLabel;
    private JTextField nameField, idField, majorField;
    private JButton addButton, deleteButton, updateButton, clearButton;
    private JTable table;
    private DefaultTableModel model;

    private ArrayList<Student> studentList;

    public StudentManagementSystem() {
        super("Student Management System");

        // Initialize components
        title = new JLabel("Student Management System");
        title.setFont(new Font("Arial", Font.BOLD, 24));
        nameLabel = new JLabel("Name:");
        idLabel = new JLabel("ID:");
        majorLabel = new JLabel("Major:");
        nameField = new JTextField(20);
        idField = new JTextField(20);
        majorField = new JTextField(20);
        addButton = new JButton("Add");
        deleteButton = new JButton("Delete");
        updateButton = new JButton("Update");
        clearButton = new JButton("Clear");

        // Add components to panel
        JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
        panel.add(title);
        panel.add(Box.createRigidArea(new Dimension(0, 20)));
        panel.add(nameLabel);
        panel.add(nameField);
        panel.add(Box.createRigidArea(new Dimension(0, 10)));
        panel.add(idLabel);
        panel.add(idField);
        panel.add(Box.createRigidArea(new Dimension(0, 10)));
        panel.add(majorLabel);
        panel.add(majorField);
        panel.add(Box.createRigidArea(new Dimension(0, 20)));
        panel.add(addButton);
        panel.add(deleteButton);
        panel.add(updateButton);
        panel.add(clearButton);
        panel.add(Box.createRigidArea(new Dimension(0, 20)));

        // Initialize table
        String[] columnNames = {"Name", "ID", "Major"};
        model = new DefaultTableModel(columnNames, 0);
        table = new JTable(model);

        // Add components to frame
        JScrollPane scrollPane = new JScrollPane(table);
        getContentPane().add(panel, BorderLayout.NORTH);
        getContentPane().add(scrollPane, BorderLayout.CENTER);

        // Add action listeners
        addButton.addActionListener(this);
        deleteButton.addActionListener(this);
        updateButton.addActionListener(this);
        clearButton.addActionListener(this);

        // Initialize student list
        studentList = new ArrayList<Student>();

        // Set frame properties
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(600, 400);
        setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == addButton) {
            String name = nameField.getText();
            String id = idField.getText();
            String major = majorField.getText();
            Student student = new Student(name, id, major);
            studentList.add(student);
            Object[] rowData = {student.getName(), student.getId(), student.getMajor()};
            model.addRow(rowData);
        } else if (e.getSource() == deleteButton) {
            int rowIndex = table.getSelectedRow();
            if (rowIndex >= 0) {
                studentList.remove(rowIndex);
                model.removeRow(rowIndex);
            }
        } else if (e.getSource() == updateButton) {
            int rowIndex = table.getSelectedRow();
            if (rowIndex >= 0) {
                String name = nameField.getText();
                String id = idField.getText();
                String major = majorField.getText();
                Student student = studentList.get(rowIndex);
                student.setName(name);
                student.setId(id);
                student.setMajor(major);
                model.setValueAt(name, rowIndex, 0);
                model.setValueAt(id, rowIndex, 1);
                model.setValueAt(major, rowIndex, 2);
            }
        } else if (e.getSource() == clearButton) {
            nameField.setText("");
            idField.setText("");
            majorField.setText("");
        }
    }

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

    private class Student {
        private String name;
        private String id;
        private String major;

        public Student(String name, String id, String major) {
            this.name = name;
            this.id = id;
            this.major = major;
        }

        public String getName() {
            return name;
        }

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

        public String getId() {
            return id;
        }

        public void setId(String id) {
            this.id = id;
        }

        public String getMajor() {
            return major;
        }

        public void setMajor(String major) {
            this.major = major;
        }
    }
}

这个代码中，我们使用了JFrame、JLabel、JTextField、JButton、JTable等Swing组件来实现图形化界面，同时使用了ArrayList和DefaultTableModel来存储和展示学生信息。可以根据自己的需求进行修改和扩展。