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In the sport of cricket a declaration occurs when a captain declares his team's innings closed.
In computer science, a declaration specifies a variable's dimensions, identifier, type, and other aspects. The declaration, and any related initializer, forms the definition; usually, the declaration and definition are the same thing. Definitions reserve memoryThe terms storage ( U. or memory ( U. refer to the parts of a digital computer that retain physical state ( data) for some interval of time, possibly even after electrical power to the computer is turned off. The anthropomorphic term memory has been used. Definitions and declarations can also be used for subroutineIn computer science, a subroutine function procedure or subprogram is a sequence of code which performs a specific task, as part of a larger program, and is grouped as one, or more, statement blocks; such code is sometimes collected into software libraries (functions); where, they are sometimes referred to as " prototypePrototypes or prototypical instances combine the most representative attributes of a category. They are the best examples among the members of a category and serve as benchmarks against which the surrounding "poorer" instances are categorized (see Prototys". Once again, in some cases the definition and the prototype are the same thing.
Initialization allows a program to assign an initial value to a variable. Below is an example of a C++C+ (pronounced "sea plus plus") is a general-purpose computer programming language. It is a statically typed free-form multi-paradigm language supporting procedural programming, data abstraction, object-oriented programming, and generic programming. Durin function (also CThe C Programming Language Brian Kernighan and Dennis Ritchie, the original edition that served for many years as an informal specification of the language The C programming language is a low-level standardized programming language developed in the early; the syntax does not differ in this case) which declares an integerThe integers consist of the positive natural numbers (1, 2, 3, …) the negative natural numbers (−1, −2, −3,. and the number zero. The set of all integers is usually denoted in mathematics by Z (or Z in blackboard bold, ), which st variable, x; this is followed by an example where the variable has been initialized to seven, x = 7:
void example1() { int x; } void example2() { int x = 7; }