A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
Correct Answer :
D. both (b) and (c)
Related Questions
C programming language was developed by
Dennis Ritchie
Ken Thompson
Bill Gates
Peter Norton
The contents of a file opened in 'r+' mode cannot be changed.
True
False
The-------------------- statement helps immediate exit from any part of the loop
break
continue
exit
All of the above
Right shifting an operand 1bit is equivalent to multiplying it by 2.
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(){
char c=125;
c=c+10;
printf("%d",c);
return 0;
}
135
+INF
-121
-135
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
Which of the following is not recommended in a header file?
Type definitions (typedefs)
Class definitions
Function definitions
Template definitions
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 shows the correct hierarchy of arithmetic operations in C
/ + *
* / +
+ / *
* / + -
Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;
# define PI = 8;' is the correct declaration of macros.
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
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 expression (i + j)++ is illegal.
True
False
Only one break can be used in one loop.
True
False
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
Which of the following is invalid?
''
" "
'a'
abc'
The identifier argv[] is a pointer to an array of strings.
True
False
The output of the following code is:
main()
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
10
Logical error
Runtime error
1 to 10 will be displayed
An array declared as A[100][100] can hold a maximum of 100 elements.
True
False
The expression 'int j = 6 + 3 % -9;' evaluates to -1.
True
False
Which of the following language is predecessor to C Programming Language?
A
B
BCPL
C++
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
What's wrong? for (int k = 2, k <=12, k++)
the increment should always be ++k
the variable must always be the letter i when using a for loop
there should be a semicolon at the end of the statement
the commas should be semicolons
A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
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
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
the value *(&i) is same as printing the value of address of i.
True
False