写一个javaGUI学生信息管理系统

好的，我可以帮你搭建一个简单的Java GUI学生信息管理系统，以下是一个示例代码：

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

public class StudentInfoSystem extends JFrame implements ActionListener {
    private JLabel nameLabel, idLabel, genderLabel, ageLabel, majorLabel;
    private JTextField nameText, idText, genderText, ageText, majorText;
    private JButton addButton, deleteButton, searchButton, updateButton, clearButton;
    private JTable dataTable;
    private JScrollPane scrollPane;
    private Object[] columnNames = {"Name", "ID", "Gender", "Age", "Major"};
    private Object[][] rowData = {};
    private ArrayList<Student> studentList = new ArrayList<>();
    private int selectedRowIndex = -1;

    public StudentInfoSystem() {
        setTitle("Student Information System");
        setSize(600, 500);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel inputPanel = new JPanel();
        inputPanel.setLayout(new GridLayout(5, 2));
        nameLabel = new JLabel("Name:");
        nameText = new JTextField(10);
        idLabel = new JLabel("ID:");
        idText = new JTextField(10);
        genderLabel = new JLabel("Gender:");
        genderText = new JTextField(10);
        ageLabel = new JLabel("Age:");
        ageText = new JTextField(10);
        majorLabel = new JLabel("Major:");
        majorText = new JTextField(10);
        inputPanel.add(nameLabel);
        inputPanel.add(nameText);
        inputPanel.add(idLabel);
        inputPanel.add(idText);
        inputPanel.add(genderLabel);
        inputPanel.add(genderText);
        inputPanel.add(ageLabel);
        inputPanel.add(ageText);
        inputPanel.add(majorLabel);
        inputPanel.add(majorText);

        JPanel buttonPanel = new JPanel();
        addButton = new JButton("Add");
        addButton.addActionListener(this);
        deleteButton = new JButton("Delete");
        deleteButton.addActionListener(this);
        searchButton = new JButton("Search");
        searchButton.addActionListener(this);
        updateButton = new JButton("Update");
        updateButton.addActionListener(this);
        clearButton = new JButton("Clear");
        clearButton.addActionListener(this);
        buttonPanel.add(addButton);
        buttonPanel.add(deleteButton);
        buttonPanel.add(searchButton);
        buttonPanel.add(updateButton);
        buttonPanel.add(clearButton);

        JPanel tablePanel = new JPanel();
        dataTable = new JTable(rowData, columnNames);
        scrollPane = new JScrollPane(dataTable);
        tablePanel.add(scrollPane);

        Container contentPane = getContentPane();
        contentPane.setLayout(new BorderLayout());
        contentPane.add(inputPanel, BorderLayout.NORTH);
        contentPane.add(buttonPanel, BorderLayout.CENTER);
        contentPane.add(tablePanel, BorderLayout.SOUTH);
    }

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

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == addButton) {
            String name = nameText.getText();
            String id = idText.getText();
            String gender = genderText.getText();
            int age = Integer.parseInt(ageText.getText());
            String major = majorText.getText();
            Student student = new Student(name, id, gender, age, major);
            studentList.add(student);
            Object[] newRow = {name, id, gender, age, major};
            ((javax.swing.table.DefaultTableModel) dataTable.getModel()).addRow(newRow);
            clearInputs();
        } else if (e.getSource() == deleteButton) {
            if (selectedRowIndex != -1) {
                studentList.remove(selectedRowIndex);
                ((javax.swing.table.DefaultTableModel) dataTable.getModel()).removeRow(selectedRowIndex);
                selectedRowIndex = -1;
                clearInputs();
            }
        } else if (e.getSource() == searchButton) {
            String searchText = JOptionPane.showInputDialog(this, "Please input the ID:");
            for (int i = 0; i < studentList.size(); i++) {
                Student student = studentList.get(i);
                if (student.getId().equals(searchText)) {
                    dataTable.setRowSelectionInterval(i, i);
                    selectedRowIndex = i;
                    nameText.setText(student.getName());
                    idText.setText(student.getId());
                    genderText.setText(student.getGender());
                    ageText.setText(String.valueOf(student.getAge()));
                    majorText.setText(student.getMajor());
                    break;
                }
            }
        } else if (e.getSource() == updateButton) {
            if (selectedRowIndex != -1) {
                String name = nameText.getText();
                String id = idText.getText();
                String gender = genderText.getText();
                int age = Integer.parseInt(ageText.getText());
                String major = majorText.getText();
                Student student = new Student(name, id, gender, age, major);
                studentList.set(selectedRowIndex, student);
                Object[] newRow = {name, id, gender, age, major};
                ((javax.swing.table.DefaultTableModel) dataTable.getModel()).setValueAt(name, selectedRowIndex, 0);
                ((javax.swing.table.DefaultTableModel) dataTable.getModel()).setValueAt(id, selectedRowIndex, 1);
                ((javax.swing.table.DefaultTableModel) dataTable.getModel()).setValueAt(gender, selectedRowIndex, 2);
                ((javax.swing.table.DefaultTableModel) dataTable.getModel()).setValueAt(age, selectedRowIndex, 3);
                ((javax.swing.table.DefaultTableModel) dataTable.getModel()).setValueAt(major, selectedRowIndex, 4);
                clearInputs();
            }
        } else if (e.getSource() == clearButton) {
            clearInputs();
        }
    }

    private void clearInputs() {
        nameText.setText("");
        idText.setText("");
        genderText.setText("");
        ageText.setText("");
        majorText.setText("");
        dataTable.clearSelection();
        selectedRowIndex = -1;
    }
}

class Student {
    private String name;
    private String id;
    private String gender;
    private int age;
    private String major;

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

    public String getName() {
        return name;
    }

    public String getId() {
        return id;
    }

    public String getGender() {
        return gender;
    }

    public int getAge() {
        return age;
    }

    public String getMajor() {
        return major;
    }
}

以上是一个简单的Java GUI学生信息管理系统，其中包括添加、删除、搜索、更新和清空等功能。在这个示例中，我们使用了JFrame、JPanel、JLabel、JTextField、JButton、JTable、JScrollPane等组件来搭建界面，并使用了ArrayList和自定义的Student类来存储和管理学生信息。这个示例代码可能存在一些不足之处，你可以根据自己的需求进行修改和完善。