Java BigInteger clearBit() Method

The clearBit() method of Java BigInteger classreturns a BigInteger which corresponds to the result of clearing a bit designated by the method argument n.

Syntax:

Parameter:

n-index of bit to clear entered by user

Returns:

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

Throws:

ArithmeticException - if n is negative.

Example 1

import java.math.BigInteger;

public class BigIntegerClearBitExample1 {
public static void main(String[]  args){
// create  2BigInteger objects
BigInteger big1,big2;

// assign value to big1
big1= new BigInteger("15");  // 1111

// perform clearBit operation on big1 with index 2
big2 = big1.clearBit(2);// 1011   after clearing the bit on index 2

String str="Result of  clearBit operation on "+big1+ " is " + big2;
System.out.println(str);   
}
}

Test it Now

Output:

Result of  clearBit operation on 15  is  11

Example 2

import java.math.BigInteger;

public class BigIntegerClearBitExample2 {
public static void main(String[]  args){
// create  2BigInteger objects
BigInteger big1,big2;

// assign values to big1, big2
big1= new BigInteger("15");  // 10011

// perform clearBit operation on big1 with negative index 
big2 = big1.clearBit(-2);   

String str="Result of  clearBit operation on "+big1+ " is "+ big2;
System.out.println(str);   
}
}

Test it Now

Output:

java.lang.ArithmeticException: Neagtive bit address

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