Java.math.BigInteger.clearBit() Method

Description

The java.math.BigInteger.clearBit(int n) returns a BigInteger whose value is equivalent to this BigInteger with the designated bit cleared. It computes (this & ~(1<<n)).

Declaration

Following is the declaration for java.math.BigInteger.clearBit() method.

public BigInteger clearBit(int n)

Parameters

n − Index of bit to clear.

Return Value

This method returns a BigInteger object of value, this & ~(1<<n).

Exception

ArithmeticException - n is negative

Example

The following example shows the usage of math.BigInteger.clearBit() method.

package com.tutorialspoint;

import java.math.*;

public class BigIntegerDemo {

   public static void main(String[] args) {

      // create 2 BigInteger objects
      BigInteger bi1, bi2;  

      // assign value to bi1
      bi1 = new BigInteger("7"); 
	
      // perform clearbit operation on bi1 with index 2
      bi2 = bi1.clearBit(2);
		  
      String str = "Clearbit operation on " +bi1+ " at index 2 gives " +bi2;

      // print bi2 value
      System.out.println( str );
   }
}

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

Clearbit operation on 7 at index 2 gives 3