Java Integer rotateRight() method with Examples

by Online Tutorials Library July 22, 2022

Java Integer rotateRight() Method

The rotateRight() method of Java Integer class returns the value obtained by rotating the two’s complement binary representation of the specified int value right by the specified number of bits. (Bits shifted out of the right hand, or low-order).

Bit shifting is a bitwise operation which is performed on all the bits of a binary value by moving the bits to a definite number of places towards left or right. Java has a single Logical right shift operator (>>).

Explanation:

 Suppose, rotateRight(20,2)  Value = 20 Equivalent Binary Value = 00010100  Shifted 1-bit right = 00001010 i.e. Becomes -> 10 Shifted 2-bit right = 00000101 i.e. Becomes -> 5 

Syntax:

Following is the declaration of rotateRight () method:

Parameter:

DataType	Parameter	Description	Required/Optional
int	i	Numeric value entered by a user whose bits are to be rotated right	Required
int	distance	Number of bit positions (distance) to rotate right which is entered by a user.	Required

Returns:

The 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.

Exceptions:

Compatibility Version:

Java 1.5 and above

Example 1

 public class IntegerRotateRightExample1 { public static void main(String[] args) { System.out.println(Integer.rotateRight(32,2));   } } 

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Output:

Example 2

 public class IntegerRotateRightExample2 { public static void main(String[] args) { int value = 20; // Get the binary equivalent System.out.println(“Binary equivalent: “+Integer.toBinaryString(value)); // get the  number of one’s int Result = Integer.rotateRight(value, 2); System.out.println(“Value after right rotation: “+Result); System.out.println(“New Binary value after Rotated Right: “+Integer.toBinaryString(Result));   } } 

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Output:

Binary equivalent: 10100 Value after right rotation: 5 New Binary value after Rotated Right: 101

Example 3

 import java.util.Scanner; public class IntegerRotateRightExample3 { public static void main(String[] args)     {   System.out.print(“Enter the Number: “);   Scanner sc = new Scanner (System.in);         int a = sc.nextInt();         sc.close();         int shifts = 0;         while (shifts < 3)         // It will return the value obtained by right rotation         {                     a = Integer.rotateRight(a, 2);             System.out.println(“Value: “+a); System.out.println(“Binary equivalent: “+Integer.toBinaryString(a));                       shifts++;         }             } } 

Output:

Enter the Number: 256 Value: 64 Binary equivalent: 1000000 Value: 16 Binary equivalent: 10000 Value: 4 Binary equivalent: 100

Example 4

 public class IntegerRotateRightExample4 { public static void main(String[] args) { int a = -185;             int shifts = 0;             while (shifts < 3)             // It will return the value obtained by right rotation             {                a = Integer.rotateRight(a, 2);                System.out.println(“Value: “+a);                shifts++;             }       } } 

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Output:

Value: -47 Value: 2147483636 Value: 536870909

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Java Integer rotateRight() method with Examples

Java Integer rotateRight() Method

Explanation:

Syntax:

Parameter:

Returns:

Exceptions:

Compatibility Version:

Example 1

Example 2

Example 3

Example 4

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