- HTML5
(u)(u)- C
\u0028\u0075\u0029 (C99)\U000028\U000075\U000029 (C99)\x28\x75\x29 (encoding-dependent)\050\165\051 (encoding-dependent)- C++
\u{28}\u{75}\u{29} (C++23)\x{28}\x{75}\x{29} (C++23, encoding-dependent)\o{050}\o{165}\o{051} (C++23, encoding-dependent)\U00000028\U00000075\U00000029\u0028\u0075\u0029\x28\x75\x29 (encoding-dependent)\050\165\051 (encoding-dependent)- Java
\u0028\u0075\u0029- JavaScript
\u{28}\u{75}\u{29}\u0028\u0075\u0029\x28\x75\x29- CSS
\28\75\29\000028\000075\000029- Quoted-Printable
=28=75=29- URL
%28%75%29