C Programming - Declarations and Initializations - Discussion
Discussion Forum : Declarations and Initializations - Find Output of Program (Q.No. 6)
6.
What will be the output of the program?
#include<stdio.h>
int X=40;
int main()
{
int X=20;
printf("%d\n", X);
return 0;
}
Answer: Option
Explanation:
Whenever there is conflict between a local variable and global variable, the local variable gets priority.
Discussion:
21 comments Page 1 of 3.
Dipak said:
5 years ago
In function block, the local variable has the highest priority than global variable.
Vishwa said:
7 years ago
Can we use Upper case letters in declaring variables? Please explain me.
Nishanth said:
8 years ago
Is we print that global variable as output?
Nishant said:
8 years ago
Yeah @Sunitha its correct.
Shivaleela said:
8 years ago
How can we print that global variable as output?
Shanme said:
9 years ago
Local variable declare only within a main function
Eg:
#include<stdio.h>
//global variable declaration//
main()
{
//local variable declaration//
}
Global varibles are declared outside the function & it is used for entire program, but local variable only used within a main function, so that in execution, compiler first runs the main function, so local variable gets more priority.
Eg:
#include<stdio.h>
//global variable declaration//
main()
{
//local variable declaration//
}
Global varibles are declared outside the function & it is used for entire program, but local variable only used within a main function, so that in execution, compiler first runs the main function, so local variable gets more priority.
Shanme said:
9 years ago
@Sunitha.
If you don't understand return, instead u may use void.
int main will return 0, if you use float main then it will return 0.00.....this is the basic concept.
If you don't understand return, instead u may use void.
int main will return 0, if you use float main then it will return 0.00.....this is the basic concept.
Nihal said:
9 years ago
Local is preferred when there is conflict.
Chetan said:
10 years ago
printf("%d",x);//print value of local var i.e 20.
printf("%d",::x)//print value of global var i.e 40.
Try it work.
printf("%d",::x)//print value of global var i.e 40.
Try it work.
Sunitha said:
10 years ago
Here what's the use of return 0;?
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