JDBC Connection with Oracle

There is a property file in which database name,user name,user password is saved.With the use of this file JDBC connection can be stablished with oracle.

//load a file that has all the information of database,user name,user password.
//It will throw ClassNotFoundException if class is not found
//If any exception due to database is occured then it  throws SQLException
String driverClass = "oracle.jdbc.driver.OracleDriver";
Connection con;
public void init(FileInputStream fs) throws ClassNotFoundException, SQLException, FileNotFoundException, IOException
    {
        Properties props = new Properties();
        props.load(fs);
        String url = props.getProperty("db.url");
        String userName = props.getProperty("db.user");
        String password = props.getProperty("db.password");
        Class.forName(driverClass);
 
        con=DriverManager.getConnection(url, userName, password);
    }