A declaration float a, b; occupies ___ of memory
1 byte
4 bytes
8 bytes
16 bytes
Correct Answer :
C. 8 bytes
Related Questions
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.
The output of the following code is:
main()
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}
Infinite loop
Hello World
World Hello
Compilation error
Which of the following is a valid destructor of the class name "Country"
int ~Country()
void Country()
int ~Country(Country obj)
void ~Country()
Which one of the following is not a fundamental data type in C++
float
string
int
wchar_t
The size of signed integer is ------ bytes.
4
2
8
10
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.
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
Which header file is essential for using strcmp() function?
string.h
strings.h
text.h
strcmp.h
The expression 'int j = 6 + 3 % -9;' evaluates to -1.
True
False
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:
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 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);
Which of the following correctly describes C++ language?
Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language
The expression "b = 3 ^ 2;" will evaluate b = 9.
True
False
In the expression - 'x + y + 3z =20'
x + y' is a keyword
3 and 20 are constants
3z is a constant
y is a variable and z is a constant
How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
3
4
5
infinite
A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
The output of the following code is:
void main()
{
int a = 1, b=2;
int *ip;
ip=&a;
b=*ip;
printf("%d", b);
}
{
int a = 1, b=2;
int *ip;
ip=&a;
b=*ip;
printf("%d", b);
}
2
1
100
0
A declaration float a, b; occupies ___ of memory
1 byte
4 bytes
8 bytes
16 bytes
The output of the following code is:
main()
{
void msg()
{
printf("HELLO WORLD");
}
}
{
void msg()
{
printf("HELLO WORLD");
}
}
HELLO WORLD
Error
None of the above
Null
Nested macros are allowed.
True
False
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
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
Union is used to hold different data at different time.
True
False
The-------------------- statement helps immediate exit from any part of the loop
break
continue
exit
All of the above
= and = = have the same operation.
True
False
Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;
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
&& and & operators have the same meaning.
True
False