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
Correct Answer :
B. 3 and 20 are constants
Related Questions
char *s[10] defines an array of ------------------------
pointers to strings
string to pointer
both
Which of the following is not true about preprocessor directives
They begin with a hash symbol
They are processed by a preprocessor
They form an integral part of the code
They have to end with a semi colon
The -------------------------- loop executes at least once.
for
while
do-while
while & do-while
/* The C language.
/* is a procedural language .*/*/
The above statement is valid.
True
False
All macro substitutions in a program are done before compilation of the program.
True
False
Which one of the following is not a fundamental data type in C++
float
string
int
wchar_t
gets() and puts() are unformatted I/O functions.
True
False
C programs are converted into machine language with the help of
An Editor
A compiler
An operating system
None of the above
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);
When a user defined function is defined in program, then it has to be called at least once from the main().
True
False
The main() function can call itself recursively.
True
False
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
What will be output if you will compile and execute the following c code?
#include
int main(){
int i=320;
char *ptr=(char *)&i;
printf("%d",*ptr);
return 0;
}
int main(){
int i=320;
char *ptr=(char *)&i;
printf("%d",*ptr);
return 0;
}
1
64
320
Compiler Error
emp name' is a valid variable name.
True
False
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.
A pointer is an indication of the variable to be accessed next.
True
False
The default initial value of automatic storage class is 0.
True
False
Structures within structures cannot be created.
True
False
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 same variable names of automatic type can be used in different functions without any conflict.
True
False
What is C Tokens?
The smallest individual units of c program
The basic element recognized by the compiler
The largest individual units of program
A & B Both
Which of the following keyword supports dynamic method resolution?
abstract
Virtual
Dynamic
Typeid
The array 'char name[10] can consist of a maximum of 9 characters.
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
fprintf()function can be used to write into console.
True
False
What is Keywords?
Keywords have some predefine meanings and these meanings can be changed.
Keywords have some unknown meanings and these meanings cannot be changed.
Keywords have some predefine meanings and these meanings cannot be changed.
None of the above
What does STL stand for?
Simple Template Library
Standard Template Library
Static Type Library
Single Type-based Library
For 16bit compiler allowable range for integer constants is ______ ?
3.4e38 to 3.4e38
32767 to 32768
32768 to 32767
32668 to 32667
How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
3
4
5
infinite
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