C Programming - Declarations and Initializations - Discussion
Discussion Forum : Declarations and Initializations - Find Output of Program (Q.No. 12)
12.
What will be the output of the program?
#include<stdio.h>
int main()
{
int X=40;
{
int X=20;
printf("%d ", X);
}
printf("%d\n", X);
return 0;
}
Answer: Option
Explanation:
In case of a conflict between a local variable and global variable, the local variable gets priority.
Discussion:
22 comments Page 1 of 3.
Gangadhararao said:
1 decade ago
#include<stdio.h>
int main()
{
int X=40;
{
int X=20;
printf("%d ", X);
}
printf("%d\n", X);
return 0;
}
Please send me out put of this program and reasons behaind it.
int main()
{
int X=40;
{
int X=20;
printf("%d ", X);
}
printf("%d\n", X);
return 0;
}
Please send me out put of this program and reasons behaind it.
Sebastinrichardj said:
1 decade ago
OUTPUT: 20,40
x= 40, is a global variable , x=20 is a local variable in this program,
here,In case of a conflict between a local variable and global variable, the local variable gets priority.
so, first 20 id printed ,then 40 is printed,
x= 40, is a global variable , x=20 is a local variable in this program,
here,In case of a conflict between a local variable and global variable, the local variable gets priority.
so, first 20 id printed ,then 40 is printed,
Thamarai said:
1 decade ago
Can we declare "int x=40" as function?
Aniket said:
1 decade ago
Ya exactly Thamarai "int x=40" is not the way of declaring the function the program should give an error during the execution.
Sameer said:
1 decade ago
Can we use {} in between our program if its not use for function?
Siva Ram said:
1 decade ago
Is it same for the declaration as global and external?
Krishna said:
1 decade ago
What is the different b/w local variable and global variable?
Naman said:
1 decade ago
@Krishna.
Global variable is declared at the beginning of the program.
Local var. is declared within a module.
Global variable is declared at the beginning of the program.
Local var. is declared within a module.
Naveen said:
1 decade ago
@Sameer.
Yes its called block, scope of the variable is inside that block.
@Aniket.
Its not a function declaration its just variable declaration and followed is the block.
@Thamarai.
Int x=40 its not a function declaration its normal variable declaration.
Yes its called block, scope of the variable is inside that block.
@Aniket.
Its not a function declaration its just variable declaration and followed is the block.
@Thamarai.
Int x=40 its not a function declaration its normal variable declaration.
Bad programmer said:
1 decade ago
Here there is no global and local concept. Both are local to main but x=40 is accessible entire main function whereas x=20 only in that block of code.
For clear view just go through definition of auto variables.
For clear view just go through definition of auto variables.
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