Operators [Bitwise Operators]

Bitwise operators

Operator	Name	Example		Description
Expr1 & expr2	Bitwise and	7 & 5	7 = 111 5 = 101       101	Answer = 5, 1 if both bits are 1 else 0.
Expr1 & expr2	Bitwise and	7 | 5	7 = 111 5 = 101        111	Answer= 7, 0 if both bits are 0 or else 1.
Expr1 | expr2	Bitwise xor	5 ^ 7	7 = 111 5 = 101        010	Answer= 2, 1 if odd nos. of 1 present.
~expr1	Bitwise not	~3		(~expr 1) will give -4 which is 1100 in 2's complement form due to a signed binary number.
Expr1 << expr2	Bitwise left shift	10 << 3	10 * 23	Answer=80,  Num * 23
Expr1 >> expr2	Bitwise right shift	20>>3	20 / 23	Answer=2,  Num / 23
Expr1 >>> expr2	Bitwise Unsigned Right Shift	-10 >>>2	10 = 1010	Answer=2

Bitwise Operator

Example

---

    public class Bitwise_Operator

        {

            public static void main(String args[])

                {

                    Bitwise_Operator bp=new Bitwise_Operator();

                    bp.BitOP();

                    bp.BitShift();

                  

                }

            void BitOP()

                {

                    int Num1=25; // 11001

                    int Num2=5; //binary 00101

                    System.out.println("Value of Num1 and Num2 is = "+Num1+" , "+Num2);

                    System.out.println("Binary value of Num1 is 11001");

                    System.out.println("Binary value of Num2 is 00101 ");

                    System.out.println("\nResult after Bitwise AND (multiplication)" );

                    System.out.println("Num1 & Num2 = " + (Num1 & Num2));

                    System.out.println("\nResult after Bitwise OR (Addition)" );

                    System.out.println("Num1 | Num2 = " + (Num1 | Num2));

                    System.out.println("\nResult after Bitwise Ex-OR" );

                    System.out.println("Num1 ^ Num2 = " + (Num1 ^ Num2));

                    System.out.println("\nResult after Bitwise NOT" );

                    System.out.println("~Num1 = " + (~Num1));

                   

                }

            void BitShift()

                {

                    int Num1=75,Num2=-25;

                    System.out.println("Value of Num1 = "+Num1);

                    System.out.println("Binary value of Num1 = 1001011");

                    System.out.println("Signed Right Shift by 3 Num1/2^3= " + (Num1>>3) ); 

                    System.out.println("Signed Left Shift by 3 Num1*2^3= " + (Num1<<3 span="" style="mso-spacerun: yes;"> 

                    System.out.println("Value of Num2 = "+Num2);

                    System.out.println("Binary value of Num2 = 110010");

                    System.out.println("Unsigned Right Shift by 2 = " + (Num2>>>2) );

       

                }

        }

---

Output

---

Value of Num1 and Num2 is = 25 , 5

Binary value of Num1 is 11001

Binary value of Num2 is 00101

Result after Bitwise AND (multiplication)

Num1 & Num2 = 1

Result after Bitwise OR (Addition)

Num1 | Num2 = 29

Result after Bitwise Ex-OR

Num1 ^ Num2 = 28

Result after Bitwise NOT

~Num1 = -26

Value of Num1 = 75

Binary value of Num1 = 1001011

Signed Right Shift by 3 Num1/2^3= 9

Signed Left Shift by 3 Num1*2^3= 600

Value of Num2 = -25

Binary value of Num2 = 110010

Unsigned Right Shift by 2 = 1073741817