Boolean Literals: Boolean literal has only a single value, either true or false.
Character Literals: In Java, characters are 16 bit Unicode. A character literal is denoted by literal in pair of single quotes. Also, it has a collection of escape sequences:
1) \b: For backspace
2) \t: For tab
3) \n: For new line or line feed
4) \f: For form feed
5) \’: For single quote
6) \”: For double quote
7) \\: For backslash
8) \r: For carriage return
9) \ddd: For octal character
10) \uxxxx: For hexadecimal Unicode character
String Literals: Strings are denoted by characters in a pair of double quotes. Example: “More Process”. A Java string has to begin and end in one line and there is no way for line continuity.