public class OracleConnection {
    
    private final static String ORACLE_URL = "jdbc:oracle:thin:@localhost:1521:orcl";
    
    private final static String USER = "szerp";
    
    private final static String PASSWORD = "szerp";
    
    public static void loadDriver() throws ClassNotFoundException {
    Class.forName("oracle.jdbc.driver.OracleDriver");
    }
    
    public static Connection getConnection() throws SQLException, ClassNotFoundException {
    loadDriver();
    return DriverManager.getConnection(ORACLE_URL, USER, PASSWORD);
    }

}

public class Test {

    public static void main(String[] a) throws Exception {
        Connection conn = OracleConnection.getConnection();
    }
}