Java.lang.Long.reverse() Method

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Description

The java.lang.Long.reverse() method returns the value obtained by reversing the order of the bits in the two's complement binary representation of the specified long value.

Declaration

Following is the declaration for java.lang.Long.reverse() method

public static long reverse(long i)

Parameters

i − This is the long value.

Return Value

This method returns the value obtained by reversing order of the bits in the specified long value.

Exception

NA

Example

The following example shows the usage of java.lang.Long.reverse() method.

package com.tutorialspoint;

import java.lang.*;

public class LongDemo {

   public static void main(String[] args) {

      long l = 210;
      System.out.println("Number = " + l);
    
      /* returns the string representation of the unsigned long value 
         represented by the argument in binary (base 2) */
      System.out.println("Binary = " + Long.toBinaryString(l));

      /* returns the value obtained by reversing order of the bits in the
         specified long value */ 
      System.out.println("After reversing = " + Long.reverse(l)); 
   }
}  

Let us compile and run the above program, this will produce the following result −

Number = 210
Binary = 11010010
After reversing = 5404319552844595200