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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.
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What are the differences between a global variable and macro?
A global variable is a place of data storage which multiple modules of application (sometimes all modules) can access to read and modify the variable's content. A macro is something altogether different. A macro is a set of instructions, typically used to save keystrokes when coding, and to maintain code readability. While macros can reference, declare or use variables (including global variables), macros and variables are quite different and cannot be compared.
Why there are no global variables in java?
Global variables are globally accessible. Java does not support globally accessible variables due to following reasons:The global variables breaks the referential transparencyGlobal variables creates collisions in namespac
What is the other name of global variables?
Another name of global variable is "EXTERNAL VARIABLES".
What are global variable?
Variables that are declared globally outside every program are called global variables.
What is a logical use for global variables?
Storing global data.
What are the differences between global variables and local variables in C plus plus?
Global variables can be seen in all blocks of your program, when local variables are visible only within the block where it's declared.
Can global variables be called preprocessors?
No.
Is global variables are stored in registers?
They is not.
What are the disadvantages of variables?
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.
What is the syntax of global variable in java?
There's no global variables in Java.
Are C variables initialized to 0 by default?
Only global/static variables are, local variables aren't.
whose variables are also known as global variables?
The variables which are declared outside the main() function is known as global variables and they can be used anywhere in the program. And, the variables which used declare inside the main() function is known as local variables and they can be used inside the main() function only. Example: #include<stdio.h> #include<conio.h> int x,y; // global variables void main() { int a,b; // Local variables ------------ ---------------------- --------------------- getch(); }
