Properties

    public static void main(String []args)
    throws FileNotFoundException, IOException{
        Object[][] p = new Object[18][2];
        p[0] = new Object[]{ (Object)(21), (Object)"FTP"    };
        p[1] = new Object[]{ (Object)(22), (Object)"SSH"    };
        p[2] = new Object[]{ (Object)(25), (Object)"SMTP"   };
        p[3] = new Object[]{ (Object)(53), (Object)"UDP"    };
        p[4] = new Object[]{ (Object)(67), (Object)"DHCP"   };
        p[5] = new Object[]{ (Object)(68), (Object)"DHCP" };
        p[6] = new Object[]{ (Object)(69), (Object)"TFTP"   };
        p[7] = new Object[]{ (Object)(80), (Object)"HTTP"   };
        p[8] = new Object[]{ (Object)(8080), (Object)"HTTP" };
        p[9] = new Object[]{ (Object)(110), (Object)"POP3"  };
        p[10] = new Object[]{ (Object)(123), (Object)"(time server)(UDP)"   };
        p[11] = new Object[]{ (Object)(143), (Object)"IMAP" };
        p[12] = new Object[]{ (Object)(443), (Object)"HTTPS"    };
        p[13] = new Object[]{ (Object)(3306), (Object)"MySQL"   };
        p[14] = new Object[]{ (Object)(5222), (Object)"XMPP"    };
        p[15] = new Object[]{ (Object)(5223), (Object)"XMPP(client-server)"};
        p[16] = new Object[]{ (Object)(5269), (Object)"XMPP(server-server)" };
        p[17] = new Object[]{ (Object)(6969), (Object)"BitTorrent"  };
        Properties prop = new Properties();
        
        for(int i = 0; i < p.length; i++) {
            for(int j = 0; j < p[i].length-1; j++) {
                prop.put(p[i][j], p[i][j+1]);
            }
        }
        BufferedOutputStream out = new BufferedOutputStream(
                new FileOutputStream(file));
        prop.store(out, "Comment");
        out.close();
    }

        prop.store(out, "Comment");

Object[][] p = new Object[18][2];