What's wrong? (x = 4 && y = 5) ? (a = 5) ; (b = 6);
the question mark should be an equal sign
the first semicolon should be a colon
there are too many variables in the statement
the conditional operator is only used with apstrings
Correct Answer :
D. the conditional operator is only used with apstrings
Related Questions
Left shift operator rotates the bits on the left and places them to the right.
True
False
struct stud
{
int roll;
char name[20];
float marks;
} *p;
What will be the byte size of p?
24
2
26
None
The output of the following code is:
#define sqr(x= x*x)
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
77, 121
225, 121
77< 144
Compilation error
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&
strcat() function ----------------------- two strings.
delete
concatenate
compare
none of the above
C is a ___ language
High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
Machine Level and OOPS
A function to be called must be ended with a----------------
.
?
;
none of the above
A continue statement causes execution to skip to
the return 0; statement
the first statement after the loop
the statement following the continue statement
the next iteration of the loop
Expression 4**3 evaluates to 64.
True
False
The expression "b = 3 ^ 2;" will evaluate b = 9.
True
False
Nested macros are allowed.
True
False
C programs are converted into machine language with the help of
An Editor
A compiler
An operating system
None of the above
The output of the following code is:
void main()
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
B
b
bca
bc
Which of the following is an example of compounded assignment statement?
a = 5
a += 5
a = b = c
a = b
&& and & operators have the same meaning.
True
False
Which of the following language is predecessor to C Programming Language?
A
B
BCPL
C++
There are total ------ numbers of operators in 'C'.
35
45
55
40
Which of the following keyword supports dynamic method resolution?
abstract
Virtual
Dynamic
Typeid
All macro substitutions in a program are done before compilation of the program.
True
False
What would be the output of the following program?
int x=40;
main(){
int x=20;
printf("
%d",x);
}
main(){
int x=20;
printf("
%d",x);
}
40
20
Compilation Error
Garbeg Value
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
Which of the following is not recommended in a header file?
Type definitions (typedefs)
Class definitions
Function definitions
Template definitions
The size of signed integer is ------ bytes.
4
2
8
10
------ is the ternary operator
?,-
?,:
++<--
none of the above
the value *(&i) is same as printing the value of address of i.
True
False
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
The statement "for (i = 0, j = 2; j <= 10; j++)" is a valid statement in 'C'.
True
False
What will be output if you will compile and execute the following c code?
#include
int main()
{
float a=5.2;
if(a==5.2)
printf("Equal");
else if(a<5.2)
printf("Less than");
else
printf("Greater than");
return 0;
}
int main()
{
float a=5.2;
if(a==5.2)
printf("Equal");
else if(a<5.2)
printf("Less than");
else
printf("Greater than");
return 0;
}
Less than
Equal
Greater than
None of above
Character data types cannot be declared as unsigned.
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