•Unicode extends character set to 16 bits (0 to 216-1) for kanji, Arabic, Hebrew, mathematics, …
•Type char in Java really is a 16 bit int
•We usually write these values as hexadecimal
strings: 16 bits is four hex digits
•‘\uXXXX’ (X = 0, 1, …, 9, A, … , F)
•Internationalization (I18N)
–locale
–collation sequence
–time, date, number format