char « Java Source And Data Type « SCJP

1.10.1.A char literal is represented by a single character in single quotes.
1.10.2.Java characters are 16-bit Unicode characters.
1.10.3.Type in the Unicode value of the character, using the Unicode notation of prefixing the value with \u
1.10.4.Characters are just 16-bit unsigned integers.
1.10.5.Not legal assignment for char literal
1.10.6.Use an escape code if you want to represent a character that can't be typed in as a literal,
1.10.7.A few escape sequences for denoting special characters: