standard library Collection of types and functions that every C++(www.cppentry.com) compiler must support. The library provides the types that support IO. C++(www.cppentry.com) programmers tend to talk about “the library,”meaning the entire standard library. They also tend to refer to particular parts of the library by referring to a library type, such as the “iostream library,” meaning the part of the standard library that defines the IO classes.

standard output Output stream usually associated with the window in which the program executes.

statement A part of a program that specifies an action to take place when the program is executed. An expression followed by a semicolon is a statement; other kinds of statements include blocks and if, for, and while statements, all of which contain other statements within themselves.

std Name of the namespace used by the standard library. std::cout indicates that we’re using the name cout defined in the std namespace.

string literal Sequence of zero or more characters enclosed in double quotes ("a string literal").

uninitialized variable Variable that is not given an initial value. Variables of class type forwhich no initial value is specified are initialized as specified by the class definition. Variables of built-in type defined inside a function are uninitialized unless explicitly initialized. It is an error to try to use the value of an uninitialized variable. Uninitialized variables are a rich source of bugs.

variable A named object.

while statement Iteration statement that provides iterative execution so long as a specified condition is true. The body is executed zero or more times, depending on the truth value of the condition.