import java.io.*;
import java.sql.*;
import java.util.*;

public class FireBirdConnection {

public Connection con = null;
public Statement stmt;
public ResultSet rs;

public FireBirdConnection() {
    String driver = null;
    String url = null;
    String login = null;
    String pass = null;

    Parameters params = null;
    try {
        params = new Parameters();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }

    try {
        url = params.getDataBaseHost();
        login = params.getDataBaseUser();
        pass = params.getDataBasePassword();
        driver = params.getDataBaseDriver();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    try {
        Class.forName(driver).newInstance();
        con = DriverManager.getConnection(url, login, pass);

    } catch (ClassNotFoundException ex) {
        System.err.println("FireBirdConnection.Cannot find this DB driver classes.");
        ex.printStackTrace();
    } catch (SQLException e) {
        System.err.println("FireBirdConnection.Cannot connect to this DB.");
        e.printStackTrace();
    } catch (InstantiationException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    }
   }
 }

DBDRIVER=org.firebirdsql.jdbc.FBDriver
ADMINPASSWORD=0095
DBUSER=SYSDBA
DBPASS=masterkey
DBHOST=jdbc:firebirdsql:local:D:\ExamDB\EXAM.FDB?encoding=utf8