Identify the wrong statement
putchar(65)
putchar('x')
putchar("x")
putchar('
')
Correct Answer :
C. putchar("x")
Related Questions
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 one of the following is not a valid reserved keyword in C++
Explicit
Public
Implicit
Private
# define PI = 8;' is the correct declaration of macros.
True
False
The output of the following code is:
int f(int a, int b);
void main()
{
int a = 12, b=154;
printf("%d", f(a, b));
}
int f(int a, int b)
{
if (a<b) return(f(b, a));
if(b==0) return(a);
return (f(b, a % b));
}
void main()
{
int a = 12, b=154;
printf("%d", f(a, b));
}
int f(int a, int b)
{
if (a<b) return(f(b, a));
if(b==0) return(a);
return (f(b, a % b));
}
2
1
Compilation error
Runtime error
Left shift operator rotates the bits on the left and places them to the right.
True
False
The main() function can call itself recursively.
True
False
A multidimensional array A[10][9] can store-------- number of elements
91
88
90
89
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
do-while loop is useful when we want the statements within the loop must be executed
Only once
At least once
More than Once
Any one of the above
Which of the following is the most preferred way of throwing and handling exceptions?
Throw by value and catch by reference.
Throw by reference and catch by reference.
Throw by value and catch by value
Throw the pointer value and provide catch for teh pointer type.
When is std::bad_alloc exception thrown?
When new operator cannot allocate memory
When alloc function fails
When type requested for new operation is considered bad< thisexception is thrown
When delete operator cannot delete teh allocated (corrupted) object
The value of an enumerated datatype can be read using scanf() function.
True
False
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
The output of the following code is:
void main()
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
21 21
20 21
21 20
20 20
The output of the following code is:
main()
{
int a = 0;
for (; i = 0; i++)
printf("%d", a);
}
{
int a = 0;
for (; i = 0; i++)
printf("%d", a);
}
0
Nothing will be displayed
Infinite loop
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
The printf() function retunes which value when an error occurs?
Positive value
Zero
Negative value
None of these
The size of signed integer is ------ bytes.
4
2
8
10
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()
{
static int a = 1, b, c;
if (a>=2) b=2; c=3;
printf("%d\t%d", b,c);
}
{
static int a = 1, b, c;
if (a>=2) b=2; c=3;
printf("%d\t%d", b,c);
}
2 3
0 3
0 0
2 0
Which of the following is not a standard exception built in C++.
std::bad_creat
std::bad_alloc
std::bad_cast
std::bad_typeid
perror( ) function used to ?
Work same as printf()
prints the error message specified by the compiler
prints the garbage value assigned by the compiler
None of the above
unsigned' is a valid variable name.
True
False
void' is a datatype.
True
False
A pointer is an indication of the variable to be accessed next.
True
False
unsigned char has a range from 0 to ------------
253
254
255
256
If 'str' is a string of 7 characters, the statement printf("%4s", str); will display ------characters.
4
7
6
0
Which of the following is an example of compounded assignment statement?
a = 5
a += 5
a = b = c
a = b
The output of the following code is:
main()
{
int a = 5, b = 6;
(a == b? printf("%d", a));
}
{
int a = 5, b = 6;
(a == b? printf("%d", a));
}
0
5
Error
None of the above
Which one of the following is not a fundamental data type in C++
float
string
int
wchar_t