Java.math.BigInteger.flipBit() Method

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Description

The java.math.BigInteger.flipBit(int n) returns a BigInteger whose value is equivalent to this BigInteger with the designated bit flipped. It computes (this ^ (1<<n)).

Declaration

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

public BigInteger flipBit(int n)

Parameters

  • n - index of bit to flip

Return Value

This method returns a BigInteger object whose value is, this ^ (1<<n)

Exception

  • ArithmeticException - n is negative

Example

The following example shows the usage of math.BigInteger.flipBit() 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("8");//1000

	// perform flipbit operation on bi1 with index 1
	bi2 = bi1.flipBit(1);

	String str = "Flipbit operation on " +bi1+ " at index 1 gives " +bi2;

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

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

Flipbit operation on 8 at index 1 gives 10



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