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() methodimport 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++; } }} |
16 4 1
Program 2: For a negative number.
// Java program to illustrate the// Java.lang.Integer.rotateRight() methodimport 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++; } }} |
-42 -1073741835 1879048189
