If 'str' is a string of 7 characters, the statement printf("%4s", str); will display ------characters.
4
7
6
0
Correct Answer :
A. 4
Related Questions
What does STL stand for?
Simple Template Library
Standard Template Library
Static Type Library
Single Type-based Library
Which one of the following is not a fundamental data type in C++
float
string
int
wchar_t
The identifier argv[] is a pointer to an array of strings.
True
False
Which among the following is a unconditional control structure
do-while
if-else
goto
for
Identify the wrong statement
putchar(65)
putchar('x')
putchar("x")
putchar('
')
Which of the following correctly describes C++ language?
Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language
What's wrong? while( (i < 10) && (i > 24))
the logical operator && cannot be used in a test condition
the while loop is an exit-condition loop
the test condition is always true
the test condition is always false
The default initial value of automatic storage class is 0.
True
False
Operation between an integer and float always yields a float result.
True
False
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
&& and & operators have the same meaning.
True
False
Which of the following is not recommended in a header file?
Type definitions (typedefs)
Class definitions
Function definitions
Template definitions
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
the value *(&i) is same as printing the value of address of i.
True
False
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);
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
What is the difference between overloaded functions and overridden functions?
Overloading is a dynamic or run-time binding and Overriding is static or compile-time binding
Redefining a function in a friend class is called function overriding while Redefining a function in a derived class is called a overloaded fucntion.
Overloading is a static or compile-time binding and Overriding is dynamic or run-time binding
Redefining a function in a friend class is called function overloading while Redefining a function in a derived class is called as overridden fucnion.
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
gets() and puts() are unformatted I/O functions.
True
False
strcat() function ----------------------- two strings.
delete
concatenate
compare
none of the above
Expression 4**3 evaluates to 64.
True
False
char *s[10] defines an array of ------------------------
pointers to strings
string to pointer
both
Single operations involving entire arrays are permitted in C.
True
False
printf("%d", sizeof('2')); will print 2.
True
False
The contents of a file opened in 'r+' mode cannot be changed.
True
False
The array 'char name[10] can consist of a maximum of 9 characters.
True
False
Which of the following is an example of compounded assignment statement?
a = 5
a += 5
a = b = c
a = b
Which of the STL containers store the elements contiguously (in adjecent memory locations)?
std::vector
std::list
std::map
std::set
The output of the following code is:
main()
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
Infinite loop
9
0
None
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.