Bitwise operator
Bitwise Operator
Sign
Bitwise AND
&
Bitwise OR
|
Bitwise XOR
^
Bitwise Complement
~
Bitwise Left
<< 
Shift Bitwise Right
>> 










Truth Table for & , | , ^
a
b
a &b
a |b
a ^b
0
0
0
0
0
0
1
0
1
1
1
1
1
1
0
1
0
0
1
1



Operation on AND (a & b)

If a = 20, b = 12, then

Decimal Value
Binary Value
20
00010100
12
00001100
4
     00000100



Operation on OR (a | b)

If a = 20, b = 12, then
Decimal Value
Binary Value
20
00010100
12
00001100
28
     00011100


Operation on XOR (a ^ b)

If a = 20, b = 12, then
Decimal Value
Binary Value
20
00010100
12
00001100
24
        00011000



Binary Left Shift (<<) and Right Shift (>>)

Left Shift (<<)


 Example:- a = 20; / * 0001 0100 * /
a << Shifts every binary number in binary value of numeric value in 2 with 2 binary numbers left side.
Example:-a = 20; / * 0001 0100 * / So its 0101 0000 means 80.

Right Shift (>>) 

Example :- a = 20; / * 0001 0100 * / 
This is completely opposite from Left shift.
Right Shift a >> Shifts every binary number in binary value of numeric value in 2 to 2 binary numbers from right side. 
Example:- a = 20; / * 0001 0100 * / So its 0000 0101 means 5.

Complement Operator (~)

  • This operator does all the bit reverse.
  • This operator reduces 0 to 1 and 0 to 0.

Decimal Value
Binary Value
~12
00001100

243
11110011


Why did 243 come here instead of Output -13?
2's Complement of 243 - (reverse of 243 in binary + 1)

Operation on 2's Complement (~)

Decimal Value
Binary value
2’s Complement
243
11110011
(00001100+1) = - (00001101)
= -13 (Output)







Bitwise Operator

For Example:-

 Source Code:

 x= 20 # 0001 0100
y = 12 # 0000 1100

 z = x & y
print ("value of z is", z) # 4 = 0000 0100

 z = x | y
print ("value of z is", z) # 28 = 0001 1100

 z = x ^ y
print ("value of z is", z) # 24 = 0001 1000

 print ("value of y is", ~ y) # -13 = 1111 0011

 z = x << 2
print ("value of z is", z) # 80 = 0101 0000

 z = x >> 2
print ("value of z is", z) # 5 = 0000 0101

Output

 value of c is 4
value of c is 28
value of c is 24
value of c is -13
value of c is 80
value of b is 5