Integer rotateRight() Method in Java

Bit shifting is used in programming and has at least one variation in each programming language. Java has a single Logical right shift operator (>>). Bit shifting is a type of bitwise operation. Bit shifting is done on all the bits of a binary value which moves the bits by a definite number of places to the right. If the value 0100; (ie. 4) is shifted right, it becomes 0010; (ie. 2)which is again shifted to the right again it becomes 0001; or 1.
The java.lang.Integer.rotateRight() is the method which returns the value we get by rotating the two’s complement binary representation of the specified int value a towards the right by a specified number of bits. Bits are shifted towards the right hand i.e., the lower-order.

Syntax :

public static int rotateRight(int a, int shifts)

Parameters: The method takes two parameters:

• a : This is of integer type and refers to the value on which operation is to be performed.
• shifts : This is also of integer type and refers to the distance of rotation.

Returns: rotateRight() method returns the value obtained by rotating the two’s complement binary representation of the specified int value right by the specified number of bits.

Below programs illustrate the Java.lang.Integer.rotateRight() method:
Program 1: For a positive number.

// Java program to illustrate the
// Java.lang.Integer.rotateRight() method
import java.lang.*;

public class Geeks {

    public static void main(String[] args)
    {
        int a = 64;
        int shifts = 0;
        while (shifts < 3)
        // It will return the value obtained by rotating left
        {
            a = Integer.rotateRight(a, 2);
            System.out.println(a);
            shifts++;
        }
    }
}

Output:

16
4
1

Program 2: For a negative number.

// Java program to illustrate the
// Java.lang.Integer.rotateRight() method
import java.lang.*;

public class Geeks {

    public static void main(String[] args)
    {

        int a = -165;
        int shifts = 0;
        while (shifts < 3)
        // It will return the value obtained by rotating left
        {
            a = Integer.rotateRight(a, 2);
            System.out.println(a);
            shifts++;
        }
    }
}

Output:

-42
-1073741835
1879048189