Connect to Oracle

package com.company;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Properties;

public class Main {

    public static void main(String[] args) {
        String url = "jdbc:oracle:thin:@//asterix.fri.uniza.sk:1521/orcl.fri.uniza.sk";
        try {
            Properties props = new Properties();
            props.setProperty("user", "kubala25");
            props.setProperty("password", "9505058662");


            Connection conn = DriverManager.getConnection(url,props);

            String sql ="SELECT * FROM os_udaje";


            PreparedStatement preStatement = conn.prepareStatement(sql);

            ResultSet result = preStatement.executeQuery();
            System.out.println("RODNE CISLO     MENO                PRIEZVISKO          ULICA               PSC       OBEC");
            System.out.println("------------------------------------------------------------------------------------------");
            while(result.next()){
                System.out.print(result.getString("rod_cislo") + "     ");
                System.out.print(result.getString("meno"));
                for (int i = 0; i < 20 - result.getString("meno").length(); i++) {
                    System.out.print(" ");
                }
                System.out.print(result.getString("priezvisko"));
                for (int i = 0; i < 20 - result.getString("priezvisko").length(); i++) {
                    System.out.print(" ");
                }
                System.out.print(result.getString("ulica"));
                for (int i = 0; i < 20 - result.getString("ulica").length(); i++) {
                    System.out.print(" ");
                }
                System.out.print(result.getString("psc") + "     ");
                System.out.print(result.getString("obec"));
                for (int i = 0; i < 20 - result.getString("obec").length(); i++) {
                    System.out.print(" ");
                }
                System.out.println();
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        // CTRL + SHIFT + ALT + S --> pridat kniznicu - ojdbc6-12.1.0.2.jar
    }
}