ID: 1, name: Zenon, surname: Martyniuk, group: 2
ID: 2, name: Bartłomiej, surname: Misiewicz, group: 4

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

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String DB_URL = "jdbc:mysql://ricky.heliohost.org/cackoa_database";
		String USER = "cackoa_user";
		String PASS = "cackoa_password";

		try(Connection conn = DriverManager.getConnection(DB_URL, USER, PASS))
		{
			Statement stmnt = conn.createStatement();
			String query = "SELECT * FROM student LIMIT 2";
			ResultSet rs = stmnt.executeQuery(query);

			while(rs.next())
			{
				System.out.print("ID: " + rs.getInt("id"));
				System.out.print(", name: " + rs.getString("name"));
				System.out.print(", surname: " + rs.getString("surname"));
				System.out.println(", group: " + rs.getInt("student_group"));
			}
		}
		catch(Exception ex)
		{
			System.out.println(ex.getMessage());
		}
	}
}