Java.math.BigInteger.setBit() Method

Description

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

Declaration

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

public BigInteger setBit(int n)

Parameters

• n - index of bit to set

Return Value

This method returns a BigInteger object whose value is this | (1<<n) .

Exception

• ArithmeticException - if n is negative

Example

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

package com.tutorialspoint;

import java.math.*;

public class BigIntegerDemo {

public static void main(String[] args) {

	// create 2 BigInteger objects
	BigInteger bi1, bi2;

	bi1 = new BigInteger("7");

	// perform setbit operation on bi1 using index 3
	bi2 = bi1.setBit(3);

	String str = "Setbit operation on " +bi1+ " at index 3 gives " +bi2;

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

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

Setbit operation on 7 at index 3 gives 15