Null character: The null character U+0000 is encoded as a 2-byte sequence 0xC0 0x80 instead of the single byte 0x00. Supplementary characters: Characters whose code points are above U+FFFF are encoded ...

A set of Java annotations which can be used in JVM-based languages. They serve as an additional documentation and can be interpreted by IDEs and static analysis tools to improve code analysis.

Main character syndrome is the perception that your life is a story or a movie where you’re the central character. A term that was born on social media, it’s not a true syndrome or mental disorder.