Binary operator
Unary operator
Ternary operator
All of the above
2.5
2
2.000000
2.500000
-4
-2.8
+2.8
+3
4
8
16
1
float, double
short int, double, long int
float, double, long double
double, long int, float
What is the output of the following code?
int a = 5;printf("%d", a == 5);
0
5
Undefined
printf("\n");
echo '\n';
printf('\n');
printf('\\n')
char > int > float
int > char > float
char < int < double
double > char > int
print()
scanf()
input()
*
&
%
#
10
20
None
Logical Operator
Conditional Operator
typecast
Ternary
What is the output of the following code:
int x = 5;
printf("%d", x++);
6
compare two numeric values
combine two numeric values
compare two boolean values
None of the above
float
double
long double
far double
To determine which operator evaluated first from left to right.
To determine the level of an operator in a program.
To determine how an expression involving more than one operator is evaluated.
To check the expression is valid or not.
getch()
getche()
gets()
-5
+5
main(){ int a, b; a=b=4; b=a++; printf("%d %d %d %d", a++, --b, ++a, b--);}
5 3 7 3
Syntax error
5 4 5 3
6 2 6 4
Both can occur multiple times, but a declaration must occur first.
A definition occurs once, but a declaration may occur many times.
Both can occur multiple times, but a definition must occur first.
A declaration occurs once, but a definition may occur many times.
&&
||
!
int a = 10, b = 5;printf("%d", a / b);
0.5
15
* / % + - =
= * / % + -
/ * % - + =
* % / - + =
When the following piece of code is executed, what happens?
b = 3;a = b++;
a contains 3 and b contains 4
a contains 4 and b contains 4
a contains 4 and b contains 3
a contains 3 and b contains 3
char
array
Depends on the system
| |
3
2 bytes
4 bytes
8 bytes
1 byte
real
int
N=m=0
Value+=10
mySize=x<y?9:11
Value=+=10
int my_num = 100,000;
int my_num = 100000;
int my num = 1000;
int $my_num = 10000;
4 Bytes
8 Bytes
Depends on the system/compiler
Cannot be determined
What will be output if you compile and execute the following ‘C’ code?
void main(){int i=4,x;x=++i + ++i + ++i;printf("%d",x);}
21
18
19
Compilation error
+
++
What will be the output of the following code?
int a = 10, b = 20;printf("%d", a + b);
30
1020
10+20
Compiler error
int x = 5;printf("%d", ++x);
7
int num;
integer num;
num int;
num integer;
<
=
>=
<=
-1
results in a syntax error
output Infomax7
outputs garbage
outputs infomax and terminates abruptly
What is the output of this statement
printf("%d", (a++));
The value of (a + 1)
Error message
Garbage
The current value of a
What will be the output of the following code segment?
int x = 24, y = 39, z = 45;z = x + y;y = z - y;x = z - y;printf("\n%d %d %d", x, y, z);
24 39 63
39 24 63
24 39 45
39 24 45
-3.4e38 to 3.4e38
-32767 to 32768
-32668 to 32667
-32768 to 32767
What will be output if you will compile and execute the following c code?
int main(){ int a=5; float b; printf("%d",sizeof(++a+b)); printf(" %d",a); return 0;}
2 6
4 6
2 5
4 5
it Compare the variable a and the variable b are same.
The value of b is assigned to variable a but if b changes later, it will not effect the value of variable a.
The value of b is assigned to variable a but if b changes later, it will effect the value of variable a.
The value of variable a is assigned to variable b, and the value of variable b is assigned to variable a.