1.What will be the output of the following code?
void main ()
{
int i = 0 , a[3] ;
a[i] = i++;
printf (“%d",a[i]) ;
}
Ans: The output for the above code would be a garbage value. In the statement a[i] = i++; the value of the variable i would get assigned first to a[i] i.e. a[0] and then the value of i would get incremented by 1. Since a[i] i.e. a[1] has not been initialized, a[i] will have a garbage value.
2.Why doesn't the following code give the desired result?
int x = 3000, y = 2000 ;
long int z = x * y ;
Ans: Here the multiplication is carried out between two ints x and y, and the result that would overflow would be truncated before being assigned to the variable z of type long int. However, to get the correct output, we should use an explicit cast to force long arithmetic as shown below:
long int z = ( long int ) x * y ;
Note that ( long int )( x * y ) would not give the desired effect.
more......!!!
void main ()
{
int i = 0 , a[3] ;
a[i] = i++;
printf (“%d",a[i]) ;
}
Ans: The output for the above code would be a garbage value. In the statement a[i] = i++; the value of the variable i would get assigned first to a[i] i.e. a[0] and then the value of i would get incremented by 1. Since a[i] i.e. a[1] has not been initialized, a[i] will have a garbage value.
2.Why doesn't the following code give the desired result?
int x = 3000, y = 2000 ;
long int z = x * y ;
Ans: Here the multiplication is carried out between two ints x and y, and the result that would overflow would be truncated before being assigned to the variable z of type long int. However, to get the correct output, we should use an explicit cast to force long arithmetic as shown below:
long int z = ( long int ) x * y ;
Note that ( long int )( x * y ) would not give the desired effect.
more......!!!
Do you like this article? Share It!
0 comments to "Programming Question & Answers in C-language:Test Your C Skills Part-I"
Popular Posts
-
list of cups and trophies (Associated with Sports and Games) Sport: Hockey Aga khan Cup , Begam Rasul Torphy (woman’s), Maharaja R...
-
1- Who is the Commerce & Industry minister of India? (A). Anand Sharma (B). Kapil Sibbal (C). Salman Khurshid (D). Kamal Nath Ans:...
-
1. Which of the following pairs of countries are the signatories of a Gas pipeline deal christened as Peace Pipeline 1) Iran - Iraq 2) Ira...
-
1. Which symbol will be on the face opposite to the face with symbol * ? A. @ B. $ C. 8 D. + 2. Two positions are dice ... -
1. A clock shows the time as 6 a.m. If the minute hand gains 2 minutes every hour, how many minutes will the clock gain by 9 p.m.? (a) 30 ...
.png "English"){kind=small}
Posts
Post a Comment