如何找出MySQL查询在Java中返回的行数？

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class MySQLQueryRowCount {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/your_database_name";
        String user = "your_username";
        String password = "your_password";

        try {
            // 加载JDBC驱动程序
            Class.forName("com.mysql.jdbc.Driver");

            // 建立数据库连接
            Connection connection = DriverManager.getConnection(url, user, password);

            // 创建一个Statement对象
            Statement statement = connection.createStatement();

            // 执行SQL查询
            ResultSet resultSet = statement.executeQuery("SELECT * FROM your_table_name");

            // 初始化行数计数器
            int rowCount = 0;

            // 遍历结果集并计算行数
            while (resultSet.next()) {
                rowCount++;
            }

            // 输出行数
            System.out.println("查询返回的行数：" + rowCount);

            // 关闭结果集、Statement和Connection
            resultSet.close();
            statement.close();
            connection.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}