Union is used to hold different data at different time.
True
False
Correct Answer :
A. True
Related Questions
Which of the following keyword supports dynamic method resolution?
abstract
Virtual
Dynamic
Typeid
Which escape character can be used to beep from speaker in C?
\a
\b
\m
Which of the following is an example of compounded assignment statement?
a = 5
a += 5
a = b = c
a = b
Expression 4**3 evaluates to 64.
True
False
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 output of the following code is:
void main()
{
int z, a = 5, b = 3; z = a * 2 + 26 % 3;
printf("%d", z); }
{
int z, a = 5, b = 3; z = a * 2 + 26 % 3;
printf("%d", z); }
10
0
12
None of the above
Single operations involving entire arrays are permitted in C.
True
False
Which of the following is a valid destructor of the class name "Country"
int ~Country()
void Country()
int ~Country(Country obj)
void ~Country()
Which among the following is a unconditional control structure
do-while
if-else
goto
for
printf() is not a library function.
True
False
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
void' is a datatype.
True
False
Which of the following is not a preprocessor directive
#if
#elseif
#undef
#pragma
Which of the following is not a standard exception built in C++.
std::bad_creat
std::bad_alloc
std::bad_cast
std::bad_typeid
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
gets() and puts() are unformatted I/O functions.
True
False
Right shifting an operand 1bit is equivalent to multiplying it by 2.
True
False
A pointer is an indication of the variable to be accessed next.
True
False
The expression "b = 3 ^ 2;" will evaluate b = 9.
True
False
Which header file is essential for using strcmp() function?
string.h
strings.h
text.h
strcmp.h
Which one of the following is not a valid reserved keyword in C++
Explicit
Public
Implicit
Private
The output of the following code is:
main()
{
int sub[50];
for(i=0; i<=48;i++)
{
sub[i]=i;
printf("
%d", sub[i]);
}
}
{
int sub[50];
for(i=0; i<=48;i++)
{
sub[i]=i;
printf("
%d", sub[i]);
}
}
0 to 48 will be displayed
48
49
Compilation Error
Operation between an integer and float always yields a float result.
True
False
Variables declared as register storage type gets stored in CPU registers.
True
False
Every if statement can be converted into an equivalent switch statement.
True
False
Which one of the following is not a fundamental data type in C++
float
string
int
wchar_t
unsigned char has a range from 0 to ------------
253
254
255
256
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.
C is a ___ language
High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
Machine Level and OOPS
If 'str' is a string of 7 characters, the statement printf("%4s", str); will display ------characters.
4
7
6
0