In C, try this line:
int intNumSold;
Variables are names for which the value may be altered. That is, the value of a name is variable. For example: int x; // Declares a variable named x. int y = 0; // Declares and initialises a variable named y. x = 5; // Changes the value of the variable named x. y = x; // Changes the value of the variable named y. By contrast, constants are names for which the value does not change: const int z = 10; // Declares a constant named z, which will always have the value 10.
floating-point variable cost
A variable is a named memory location for which the contents are volatile. The antonym of variable is constant.
In PHP, you can declare a variable in several ways.In the global scope, or within a function, you can use:var $variable; // Creates an empty variable$variable = {something}; // declares, then assigns, the variableIn the object scope, a property operates like a variable:public $variable; // Creates an empty propertyprivate $variable; // Same thing, but can't be referenced outside the objectprotected $variable; // Similar, but can only be referenced in the object or any object extended by itpublic/private/protected $variable = {something}; // declares, then assigns a default value to, the property$this->variable = {something}; // if not declared, this will declare the property and assign the value to itYou can also create object properties from outside the object:$object->variable = {something}; // works just like $this->variableFinally, the arguments to a function are implicitly declared:function DoSomething ($variable) { ... } // declares and assigns $variableVariables in PHP are very flexible, mutable things. This is unlike some other languages that rely on strict type declarations for variables and other code constructs.
A variable is a named memory address in which a value may be stored and mutated.
You cannot create a variable named "while", since that is a reserved word.
Btw, this is a C++ question. in 'String str', str is an object and most probabily (based on most String implementations) we can use str = "my name"; int len = str.length(); String s = new String; <== this is something wrong. it should be String *s = new String; here 's' is a pointer and the object is allocated/instanciated by 'new' operator you can use it *s = "my name" int len = s->length()
Cannot be answered without "the following statments" :(
Declaring a variable or function reserves an entry in a symbol table for that function or variable (entries in a symbol table eventually become memory addresses during linkage). Defining a variable or function actually specifies the value to be stored in the memory location specified and/or the code that should be compiled. Examples: Declaration: int foo(); // Declares a function. int bar; // Declares a variable. Definition: int foo() { printf("Hello World"); } bar = 5; Declaration and definition: int bar = 5;
Declare Real price=49.95 Display "the original price." Input item original price Display "price"
A variable is a named storage location that can hold any data value. A variable has two associated values ; r value and l value.
A variable is a named object that is mutable. A constant is a named object that is immutable.