C Programming > Control Instructions

[abdulsaboor]

C Programming > Control Instructions

1.
How many times "vchowk" is get printed?

#include<stdio.h>
int main()
{
int x;
for(x=-1; x<=10; x++)
{
if(x < 5)
continue;
else
break;
printf("vchowk");
}
return 0;
}
A. Infinite times
B. 11 times
C. 0 times
D. 10 times

Answer: Option C

[abdulsaboor]

2.
How many times the while loop will get executed if a short int is 2 byte wide?

#include<stdio.h>
int main()
{
int j=1;
while(j <= 255)
{
printf("%c %d\n", j, j);
j++;
}
return 0;
}
A. Infinite times
B. 255 times
C. 256 times
D. 254 times

Answer: Option B

Explanation:

The while(j <= 255) loop will get executed 255 times. The size short int(2 byte wide) does not affect the while() loop.

[abdulsaboor]

3.
Which of the following is not logical operator?

A. &
B. &&
C. ||
D. !

Answer: Option A

Explanation:

Bitwise operators:
& is a Bitwise AND operator.

Logical operators:
&& is a Logical AND operator.
|| is a Logical OR operator.
! is a NOT operator.
So, '&' is not a Logical operator.