java语言 创建一学生数据库School，创建一表studb，包含字段：学号、姓名、性别、专业、入学年份。编写程序对studb表进行学生信息的增、删、改、查操作。

好的，我可以为您提供Java语言的代码实现。不过在开始之前，您需要先安装一个Java开发环境（JDK）并配置好环境变量。以下是代码实现：

import java.sql.*;

public class School {
    private Connection conn = null;
    private Statement stmt = null;
    private ResultSet rs = null;

    public School() {
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test?useSSL=false", "root", "password");
            stmt = conn.createStatement();
        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }

    public void addStudent(String id, String name, String sex, String major, String year) {
        try {
            String sql = "INSERT INTO studb(id, name, sex, major, year) VALUES('" + id + "', '" + name + "', '" + sex + "', '" + major + "', '" + year + "')";
            stmt.executeUpdate(sql);
            System.out.println("学生信息添加成功！");
        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }

    public void deleteStudent(String id) {
        try {
            String sql = "DELETE FROM studb WHERE id='" + id + "'";
            stmt.executeUpdate(sql);
            System.out.println("学生信息删除成功！");
        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }

    public void updateStudent(String id, String name, String sex, String major, String year) {
        try {
            String sql = "UPDATE studb SET name='" + name + "', sex='" + sex + "', major='" + major + "', year='" + year + "' WHERE id='" + id + "'";
            stmt.executeUpdate(sql);
            System.out.println("学生信息更新成功！");
        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }

    public void searchStudent(String id) {
        try {
            String sql = "SELECT * FROM studb WHERE id='" + id + "'";
            rs = stmt.executeQuery(sql);

            if (rs.next()) {
                String name = rs.getString("name");
                String sex = rs.getString("sex");
                String major = rs.getString("major");
                String year = rs.getString("year");
                System.out.println("学号：" + id + "\t姓名：" + name + "\t性别：" + sex + "\t专业：" + major + "\t入学年份：" + year);
            } else {
                System.out.println("没有找到该学生的信息！");
            }
        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }

    public static void main(String[] args) {
        School school = new School();

        // 添加学生信息
        school.addStudent("001", "张三", "男", "计算机科学", "2019");
        school.addStudent("002", "李四", "女", "软件工程", "2018");
        school.addStudent("003", "王五", "男", "信息安全", "2017");

        // 查找学生信息
        school.searchStudent("001");

        // 更新学生信息
        school.updateStudent("002", "王丽", "女", "软件工程", "2017");

        // 删除学生信息
        school.deleteStudent("003");
    }
}

这段代码实现了对学生信息的增、删、改、查操作。其中，`addStudent`方法用于添加学生信息，`deleteStudent`方法用于删除学生信息，`updateStudent`方法用于更新学生信息，`searchStudent`方法用于查找学生信息。在`main`方法中，我们通过调用这些方法来操作学生信息。需要注意的是，代码中的数据库连接信息需要根据您的实际情况进行修改。