What are Java Bit-wise Operators | A2IT Online | JAVA COURSE

What are Java Bit-wise Operators | A2IT Online | JAVA COURSE

Operators constitute the basic building block to any programming language. Java too provides many types of operators which can be used according to the need to perform various calculations and functions, be it logical, arithmetic, relational, etc. They are classified based on the functionality they provide. Here are a few types:

Arithmetic Operators
Unary Operators
Assignment Operator
Relational Operators
Logical Operators
Ternary Operator
Bitwise Operators
Shift Operators

Bitwise Operators

Bitwise operators are used to perform the manipulation of individual bits of a number. They can be used with any integral type (char, short, int, etc.). They are used when performing update and query operations of the Binary indexed trees.

Bit-wise operator works on bits and performs the bit-by-bit operation. Assume if a = 60 and b = 13; now in binary format they will be as follows −

a = 0011 1100
b = 0000 1101
-----------------
a&b = 0000 1100
a|b = 0011 1101
a^b = 0011 0001
~a = 1100 0011

1. Bitwise OR (|)

This operator is a binary operator, denoted by ‘|’. It returns bit by bit OR of input values, i.e., if either of the bits is 1, it gives 1, else it shows 0.

Example:

a = 5 = 0101 (In Binary)
b = 7 = 0111 (In Binary)

Bitwise OR Operation of 5 and 7
0101
| 0111
________
0111 = 7 (In decimal)

2. Bitwise AND (&)

This operator is a binary operator, denoted by ‘&.’ It returns bit by bit AND of input values, i.e., if both bits are 1, it gives 1, else it shows 0.

Example:

a = 5 = 0101 (In Binary)
b = 7 = 0111 (In Binary)

Bitwise AND Operation of 5 and 7
0101
& 0111
________
0101 = 5 (In decimal)

3. Bitwise XOR (^)

This operator is a binary operator, denoted by ‘^.’ It returns bit by bit XOR of input values, i.e., if corresponding bits are different, it gives 1, else it shows 0.
Example:

a = 5 = 0101 (In Binary)
b = 7 = 0111 (In Binary)

Bitwise XOR Operation of 5 and 7
0101
^ 0111
________
0010 = 2 (In decimal)

4. Bitwise Complement (~)

This operator is a unary operator, denoted by ‘~.’ It returns the one’s complement representation of the input value, i.e., with all bits inverted, which means it makes every 0 to 1, and every 1 to 0.

Example:

a = 5 = 0101 (In Binary)

Bitwise Complement Operation of 5

~ 0101
________
1010 = 10 (In decimal)

Bit-Shift Operators (Shift Operators)

Shift operators are used to shift the bits of a number left or right, thereby multiplying or dividing the number by two, respectively. They can be used when we have to multiply or divide a number by two.

Syntax:

number shift_op number_of_places_to_shift;

Types of Shift Operators:

Shift Operators are further divided into 4 types. These are:

Signed Right shift operator
Unsigned Right shift operator
Left shift operator
Unsigned Left shift operator

Now Get Free Video Courses, E-Books, Event Updates & Class Notes Anywhere Anytime
LEARN ANYWHERE WITH A2IT IOS AND ANDROID APP

Free Download Educational App with Step-by-Step Guide To Learn or Teach in Smarter Way

our Websites: