Constants
Keywords
Operators
Tokens
Bjarne Stroustrup
James A. Gosling
Dennis Ritchie
Dr. E.F. Codd
Spaces
Digits
Underscores
Letters
Assignment Relational Arithmetic
Arithmetic Relational Assignment
Relational Arithmetic Assignment
Assignment Arithmetic Relational
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.
2.5
2
2.000000
2.500000
-4
-2.8
+2.8
+3
What is the output of the following code?
int a = 10, b = 5;printf("%d", a / b);
5
0.5
15
What is the output of the following code:
int x = 5;
printf("%d", x++);
4
6
Undefined
What will be the output of the following code?
int x = 5;printf("%d", ++x);
7
-3.4e38 to 3.4e38
-32767 to 32768
-32668 to 32667
-32768 to 32767
A
B
ADA
C++
It is used to define global variables
It is used to define a macro
It is used to include standard or user-defined header files in the program
It is used to include comments in the code
print("Hello World");
echo("Hello World");
printf("Hello World");
None of these
Decimal
Binary
Octal
Hexadecimal
Martin Richards
Ken Thompson
Herman Hellorith
getchar()
gets()
scanf()
cin.get()
char
int
float
double
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.
long double
far double
start()
printf()
main()
getch()
What will be the output of the following program?
int main() { int x=5; printf(“%d %d %d”,x,x<<2,x>>2); }
1 20 5
5 1 20
5 20 1
20 1 5
array
30
32
36
40
final
constant
const
static
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
It returns the size of the variable in bits
It returns the size of the variable in bytes
It returns the size of the variable in kilobytes
It returns the number of elements in an array
world
addition23
test-name
factorial
1
-1
0
AT & Ts Bell Laboratories of USA in 1972
AT & Ts Bell Laboratories of USA in 1970
Sun Microsystems in 1973
Cambridge University in 1972
infomax
info_max
info max
All of these
auto
case
main
default
float_int, keyword, A1
ANSI, ascii, cpu
valid, variable, name
None of the above
int a = 5;printf("%d", a == 5);
int num;
integer num;
num int;
num integer;
&&
| |
!
All of the above
* / % + - =
= * / % + -
/ * % - + =
* % / - + =
C compiler supports octal integer constant.
C compiler supports hexadecimal integer constant.
C compiler supports binary integer constant.
C compiler supports decimal integer constant.
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
real
<
=
>=
<=
They execute programs faster than compilers
They translate the entire program at once
They translate and execute code line by line
They are not used in modern programming
int number;
float rate;
int variable_count;
int $main;
int main(){int x,y,z;x='1'-'0'; /* line-1 */y='a'-'b'; /* line-2 */z=x+y;printf("%d",z);}
Error because of incorrect line-1 only.
Error because of incorrect line-1 and line-2.
Error because of incorrect line-2 only.
link, load, code, compile and execute
code, compile, link, execute and load
code, compile, link, load and execute
compile, code, link, load and execute
signed short
unsigned short
long
&
||
int my_num = 100,000;
int my_num = 100000;
int my num = 1000;
int $my_num = 10000;
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.
Logical Operator
Conditional Operator
typecast
Ternary