Query Mysql 2

package zetcode;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
 
public class Version {
 
    public static void main(String[] args) {
 
        Connection con = null;
        Statement st = null;
        ResultSet rs = null;
 
        String url = "jdbc:mysql://localhost:3306/testdb";
        String user = "testuser";
        String password = "test623";
 
        try {
            con = DriverManager.getConnection(url, user, password);
            st = con.createStatement();
            rs = st.executeQuery("SELECT VERSION()");
 
            if (rs.next()) {
                System.out.println(rs.getString(1));
            }
 
        } catch (SQLException ex) {
            Logger lgr = Logger.getLogger(Version.class.getName());
            lgr.log(Level.SEVERE, ex.getMessage(), ex);
 
        } finally {
            try {
                if (rs != null) {
                    rs.close();
                }
                if (st != null) {
                    st.close();
                }
                if (con != null) {
                    con.close();
                }
 
            } catch (SQLException ex) {
                Logger lgr = Logger.getLogger(Version.class.getName());
                lgr.log(Level.WARNING, ex.getMessage(), ex);
            }
        }
    }
}