Bitwise operators can operate upon?
double and chars
floats and doubles
ints and floats
ints and chars
Correct Answer :
D. ints and chars
Related Questions
The output of the following code is:
void main()
{
int a;
int &b = a;
a=100;
printf("b=%d\ta=%d
", b,a);
}
{
int a;
int &b = a;
a=100;
printf("b=%d\ta=%d
", b,a);
}
b=100 a=100
b=100 a=0
b=0 a=100
Error
Which escape character can be used to beep from speaker in C?
\a
\b
\m
The output of the following code is:
main()
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
10
Logical error
Runtime error
1 to 10 will be displayed
The output of the following code is:
main()
{
int k, num = 30;
k = (num > 5 ? (num <= 10 ? 100 : 200) : 500);
printf("
%d", num);
}
{
int k, num = 30;
k = (num > 5 ? (num <= 10 ? 100 : 200) : 500);
printf("
%d", num);
}
200
500
30
Unpredictable
The expression "b = 3 ^ 2;" will evaluate b = 9.
True
False
The output of the following code is:
void main()
{
float a;
int x = 10, y = 3; a = x / y;
printf("%f", a); }
{
float a;
int x = 10, y = 3; a = x / y;
printf("%f", a); }
3.999999
Error
3
3.000000
All elements of a structure are allocated contiguous memory locations.
True
False
An array elements are always stored in _________ memory locations.
Sequential
Random
Sequential and Random
None of the above
The main() function can be called from any other function.
True
False
Each pass through a loop is called a/an
enumeration
iteration
culmination
pass through
What will be output if you will compile and execute the following c code?
#include
#define x 5+2
int main(){
int i;
i=x*x*x;
printf("%d",i);
return 0;
}
27
343
233
Compiler Error
Which options shows the correct hierarchy of arithmetic operators
**, * or /, + or -
**, *, /, +, -
**< /< *< +<-
/ or *, - or +
gets() and puts() are unformatted I/O functions.
True
False
Character data types cannot be declared as unsigned.
True
False
Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;
The output of the following code is:
void change (char *k)
{
k="Hello";
return;
}
main()
{
char *ch = "World";;
change(ch);
printf("%s", ch);
}
{
k="Hello";
return;
}
main()
{
char *ch = "World";;
change(ch);
printf("%s", ch);
}
Hello
World
Compilation error
Hello World
Nested macros are allowed.
True
False
The identifier argv[] is a pointer to an array of strings.
True
False
C is a ___ language
High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
Machine Level and OOPS
Which of the following is not an infinite loop
int i =1;
while (1)
{i++;}
for( ; ; );
int true=0< false;
while (true)
{false = 1;}
int y, x = 0;
do
{y = x;}
while (x==0);
The output of the following code is:
void main()
{
int a = 0;
while (a<=50) for(;;) if(++a % 50==0) break;
printf("a = %d", a);
}
{
int a = 0;
while (a<=50) for(;;) if(++a % 50==0) break;
printf("a = %d", a);
}
a = 100
a = 50
compilation error
runtime error
What is an array?
An array is a collection of variables that are of the dissimilar data type.
An array is a collection of variables that are of the same data type.
An array is not a collection of variables that are of the same data type.
None of the above.
The expression (i + j)++ is illegal.
True
False
If the class name is X, what is the type of its “this” pointer (in a nonstatic, non-const member function)?
const X* const
X* const
X*
X&
Single operations involving entire arrays are permitted in C.
True
False
If 'str' is a string of 7 characters, the statement printf("%4s", str); will display ------characters.
4
7
6
0
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
Operation between an integer and float always yields a float result.
True
False
printf("%d", sizeof('2')); will print 2.
True
False
Which of the following keyword supports dynamic method resolution?
abstract
Virtual
Dynamic
Typeid