True, a variable cannot be both global and local. But if a global and a local variable share the same name, the local one will hide the global.

A static variable is a variable allocated in static storage.

A local variable is a variable declared inside a function.

A global variable is a variable declared outside of any class or function.

Note that local variables and global variables can both be allocated in static storage.

A local variable is a variable declared inside a construct, such as a class or function, while a global variable is a variable declared outside of any construct.

A variable declared static outside of a function has a scope the of the source file only. It is not a global variable. A variable declared outside of a function and without the static qualifier would be a global variable.

The accessibility. The global one: almost everywhere in the code may reference to the global variable directly.

The private variable, is private to the declaring module (class, method, assembly) only. Outside of that module has no access to it directly.

When you acess a global variable inside main function you must use the same name, because the variable declared as global can be accessed by any function/procedure on the class where it was defined.

const

There's no global variables in Java.

A global variable is available for use throughout the program. It is normally declared outside any procedure. A local variable is only available for use in the procedure it was declared in. Most variables are local, but there will be occasions when you want different procedures to be able to use the same variable. This is when you use a global variable.

Global variables are accessible through your project. Different classes, modules, and interfaces can access a variable if it is global. A Global Variable can simply be declared by putting the word Public in front of the variable. Here is an example.

Public V As String

Now anything in your whole entire project can access the variable V.

It's a global variable.

A local variable is a variable that can only be called on by the module. Where as a global variable can be called upon by any module. Only statements made inside the same module can call on a local variable.

Another name of global variable is "EXTERNAL VARIABLES".

Global variables are non-local variables. That is, variables that are not defined in a function or class. They are globally accessible to all code in the same translation unit. External variables are global variables that have external linkage; they are accessible across translation units.

global

Main memory (RAM).

Variables that are declared globally outside every program are called global variables.

r+ is the keyword

I couldn't tell what answer your teacher expects to get for this question. Ask him/her personally.

Global variables can have any value, in C they are aumaticatically initialized to zero.

Because that's what global means.

See related link.

global and static

A global variable is a variable that is declared at global scope, rather than file, namespace, function, class or nested scope. Global variables are usually declared with external linkage within a header and initialised in one (and only one) source file. Any file that includes the header (which includes the source file that initialised the global variable) then has unrestricted access to the variable. It is globally visible and any code can alter it.

Global variables should be used sparingly and only when absolutely necessary. If the vast majority of the functions in your program require access to a particular variable, then a global variable makes perfect sense and is by far the simplest solution. However, a variable that is only used by a handful of functions can hardly be described as a global entity, thus it has no place within the global namespace and should be scoped to those functions that actually require it instead.

Polluting the global namespace with variables that have no reason to be global is never a good idea. Aside from anything else, the programmer has no control over what code may access a global, and global variable declarations may be spread over many files or hidden within headers, making it difficult to get an overview of every global.

Globals are not necessarily a bad thing; if a concept is global in nature then of course make it global. But don't make variables global in the mistaken belief that it is somehow convenient. If a variable really needs to be shared amongst a specific set of functions then there are far better ways of doing so without making the variable global to all functions. Declaring the variable locally in a function (even the main function as a static variable) and passing it to the functions that operate upon it, or by encapsulating the variable in a class along with the functions that operate upon it are far better options than making a variable globally accessible.

Keeping variables as close to the code that operates upon them makes your code easier to both read and maintain.

Static may be local of global

-local static variable is limited to the function scope. and retain it's value when function is been called . compiler differentiate static variables with a prefix function name while dealing with same name static variable in different functions.

- Global static variable is visible to all the function defined in the file and retain it value but it cannot be used outside this file.

now Global Variable

--- this variable is also visible to all of the functions inside the file but also can be used outside the file via extern keyword.

Local Variable

A Local variable is a variable whose scope is limited to the Block of the Subroutine defining it.

Private Sub Command1_Click

Dim a as integer

End Sub

Module Level Variable

A Module Level variable is a variable whose scope is limited to the Form Module defining it.

Public Sub Command1_Click

Dim a as integer

End Sub

Global Level Variable

A Global Level variable is a variable whose scope can be limited to the entire project defining it.

Private Sub Class_Initialize ()

Dim a As Integer

End Sub

Useable, but not recommended. Common example: errno

The only advantage of a global variable is when you wish to represent something that is truly global. A global variable is, by definition, a variable that can be used by any function without having to pass that variable through a function argument.

A good example of a global variable is the standard console output device (std::cout) in C++. Not all functions need to present output through std::cout, but it is useful to know that the device is always accessible should we need it. That is, when we want a function to present output, we don't have to instantiate a new device to do so, we can simply use the one that is readily available to us. And since there can only ever be one physical standard output device, it is a global device in every sense of the word.

The problem with global variables is that it is all too easy to get into the habit of declaring them when the variable does not represent a global concept. The convenience of being able to access a global from any function certainly has its uses, but code is always much easier to read and maintain when variables have a clearly-defined locality.

For instance, if we have a dozen functions that operate upon a particular variable, it makes more sense to package those functions and the variable together into a self-contained class, where the variable is private to the class rather than globally accessible. If we declare the variable and the functions static members of the class, then we can be certain that there will only ever be one instance of the variable. Thus we get all the advantages of a global without the risk of exposing that variable to external code. If code needs to examine the variable, then we can provide a public read-only accessor for that purpose.

A hidden global variable must be one that has its scope blocked by a local variable of the same name. To access the hidden variable, use the scope resolution operator ::, such as is ::variable_name. If there is another reason for the hidden status, please clarify and restate the question.

This question is meaningless. 'Variable' is not a type, and scope does not determine how much 'data' something can store.

The scope of a variable is the range, or area, in which a variable exists.

// this c is global and can be referenced from anywhere

int c = 1;

void foo() {

// this c is local to function foo and can't be referenced from the outside

int c = 2;

}

void bar() {

// if we try to reference c here, we get the value 1 from the global variable

}

Carbon dioxide is the global variable that has the strongest effect on climate. Its increase in the atmosphere due to human activities like burning fossil fuels leads to the greenhouse effect, trapping heat and causing global temperatures to rise.

Global Varible:

The variable which is declared as "Global" one : having the preveleges to use and access that variable in any class and object( means any where in the program) just like PUBLIC keyword in OOPS concepts.

Static Variable :

If we declare a variable as Static , then it wont have the permission to access that variable through out the program and u have to use it inside the class or object which u declared itself.

All the Best

Annapurna

Linkage time.

Your program won't work correctly.

in order to acheive a inheritance and data encapsulation property global variables are not declared in java.

The only disadvantage of a global variable is that you cannot directly encapsulate them. Other than that, there is no real disadvantage of global variables.

To access a hidden global variable, use the scope resolution operator ::

Scope of static variable is with in the file if it is static global.

Scope of static variable is with in the function if variable is declared local to a function.

But the life time is throughout the program

Almost all High end scripting languages, in order to share a Variable with multiple files, You would have to declare a Global Variable.

A global declaration of a function or variable is a declaration that is at the global scope of the program, not inside another function. This means that the name will be visible within all functions in the program.

Jiffies is a global variable that holds the number of ticks that have occured after the system has booted. On each timer interrupt the value of this variable is increased by 1.

local Variable

A Local variable is a variable whose scope is limited to the Block of the Subroutine

defining it.

Private Sub Command1_Click

Dim a as integer

End Sub

Module Level Variable

A Module Level variable is a variable whose scope is limited to the Form Module

defining it.

Public Sub Command1_Click

Dim a as integer

End Sub

Global Level Variable

A Global Level variable is a variable whose scope can be limited to the entire project

defining it.

Private Sub Classjnitialize ()

Dim a As Integer

End Sub

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

A local variable is only available for use in the procedure it was declared in. Most variables are local. Once the procedure ends, the variable is lost, but as the procedure has done its job, that is not a problem. The opposite is a global variable which is declared outside all procedures and is available for use by any of them.

a variable that is defined within a block is considered to have local scope, i.e., it is only visible to the block that contains it. Its lifetime is also limited unless it is marked as a 'static' variable, in which case it will exist for the entire length of program execution.

Hi, I would like to answr the question.So, if you want the to give more precedence to global variables with respect to a local one.Just add a pair of curly braces in the local variable and by doing so u can access global variable.

The Sun,Earth's orbit, the oceans,greenhouse gases,and dust.

You can use the preprocessor directive #define, or you can describe a variable in the body of main(). With the preprocessor directive you can make the variable accessible even out of your current project.