What is the difference between a local and a global variable?
Answers were Sorted based on User's Feedback
Answer / rahul
Local Variables are declared within the function main.
main()
{
int a,b,c;(local variable declaration)
}
Global variables are declared outside the function main.
int FACT(int);
main()
{
Local variable declaration;
}
| Is This Answer Correct ? | 128 Yes | 16 No |
Local Variable :
The scope or lifetime of the local variable
is with in a block or procedure..
Eg: DECLARE @Variable1
Global Variable :
The scope or lifetime of the global
variable throughout the execution of the program..
Eg: DECLARE @@Variable1
| Is This Answer Correct ? | 119 Yes | 23 No |
Answer / l.pandiyan
A global variable can be accessed by all functions. It is
initialized at the beginning of the program and is deleted
when the program shuts down. A local variable is isolated in
its function.
| Is This Answer Correct ? | 70 Yes | 6 No |
Answer / rattana
global variable can be accessed by all functions. local variable is isolated in its function.It is initialized at the beginning of the program and deleted when the program closed.
| Is This Answer Correct ? | 31 Yes | 10 No |
Answer / jaccessdenied
int a;//global variable
class VariablesDemo
{
int b;//class variable
void add()
{
int c,d;//c,d,e are local variables that are used within the function add
int e=c+d;
}
}
| Is This Answer Correct ? | 17 Yes | 6 No |
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