Bitwise AND : Bitwise Operators in Java Programming

Bitwise AND Operator is -

1. Binary Operator as it Operates on 2 Operands.
2. Denoted by - &
3. Used for : Masking Bits.

Bitwise AND Summary Table :

A	B	A & B
0	0	0
0	1	0
1	0	0
1	1	1

 

Live Example 1 : ANDing 42 and 15

class BitwiseAND{
  public static void main(String args[]){
  int num1 = 42;
  int num2 = 15;
  System.out.println("AND Result =" +(num1&num2));
  }
}

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Output :

AND Result = 10

Explanation of Code :

Num1 : 00101010   42
Num2 : 00001111   15
======================
AND  : 00001010   10

• 42 is represented in Binary format as -> 00101010
• 15 is represented in Binary format as -> 00001111
• According to above rule (table) we get 00001010 as final structure.
• println method will print decimal equivalent of 00001010 and display it on screen.

Live Example 2 : ANDing Hex and Integer

class BitwiseAND{
  public static void main(String args[]){
  int num1 = 42;
  int num2 = 0xF;
  System.out.println("AND Result =" +(num1&num2));
  }
}

• Code will also gives 10 as a result.
• 0xF is hexadecimal number.
• 0xF is first converted into “decimal“.(Decimal Equivalent : 15)
• Again Same Operation will takes place as that of “Live Example 1“.

Step 1: Converting Hex to Decimal
Num2  : F  (Hex)
      : 15 (Decimal Equivalent)

Step 2: Converting Decimal to Binary
Num1  : 00101010   42
Num2  : 00001111   15
======================
AND   : 00001010   10

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Bitwise Logical Operators : AND | OR | NOT | XOR