The CDC's recommendation that doctors give every pregnant woman a Tdap vaccination during every pregnancy â regardless of whether a woman has already received one dose of Tdap â is an off-label use of the vaccine.
Literals and Constants in C#. Literal is a source code representation of a value, i.e. it is a value that has been hard-coded directly into your source. x is a variable, and 100 is a literal.
The JSP expression language defines the following literals: 1  Boolean: true and false. 2  Integer: as in Java. 3  Floating point: as in Java.  String: with single and double quotes;  is escaped as \, ' is escaped as \', and \ is escaped as 1  \\. Null: null.