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
Correct Answer :
D. the test condition is always false
Related Questions
Structures within structures cannot be created.
True
False
The same variable names of automatic type can be used in different functions without any conflict.
True
False
Which of the following keyword supports dynamic method resolution?
abstract
Virtual
Dynamic
Typeid
The size of signed integer is ------ bytes.
4
2
8
10
Which of the following is allowed in a C Arithmetic instruction
[]
{}
()
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
Operation between an integer and float always yields a float result.
True
False
When a user defined function is defined in program, then it has to be called at least once from the main().
True
False
The value of an enumerated datatype can be read using scanf() function.
True
False
fprintf()function can be used to write into console.
True
False
A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
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
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
How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
3
4
5
infinite
C programs are converted into machine language with the help of
An Editor
A compiler
An operating system
None of the above
unsigned char has a range from 0 to ------------
253
254
255
256
C is a ___ language
High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
Machine Level and OOPS
Single operations involving entire arrays are permitted in C.
True
False
Which among the following is a unconditional control structure
do-while
if-else
goto
for
Which of the following correctly describes C++ language?
Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language
Right shifting an operand 1bit is equivalent to multiplying it by 2.
True
False
For 16bit compiler allowable range for integer constants is ______ ?
3.4e38 to 3.4e38
32767 to 32768
32768 to 32767
32668 to 32667
There are total ------ numbers of operators in 'C'.
35
45
55
40
The output of the following code is:
void main()
{
int a;
int &b = a;
a=100;
printf("b=%d\ta=%d
", b,a);
}
{
int a;
int &b = a;
a=100;
printf("b=%d\ta=%d
", b,a);
}
b=100 a=100
b=100 a=0
b=0 a=100
Error
The-------------------- statement helps immediate exit from any part of the loop
break
continue
exit
All of the above
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&
Which of the following is a valid destructor of the class name "Country"
int ~Country()
void Country()
int ~Country(Country obj)
void ~Country()
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
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
What is right way to Initialization array?
int num[6] = { 2, 4, 12, 5, 45, 5 } ;
int n{} = { 2, 4, 12, 5, 45, 5 } ;
int n{6} = { 2< 4< 12 } ;
int n(6) = { 2, 4, 12, 5, 45, 5 } ;