Skip to content
Related Articles
Get the best out of our app
GeeksforGeeks App
Open App
geeksforgeeks
Browser
Continue

Related Articles

BigInteger clearBit() Method in Java

Improve Article
Save Article
Like Article
Improve Article
Save Article
Like Article

Prerequisite: BigInteger Basics
The clearBit() method returns a BigInteger which is used to clear a particular bit position in a BigInteger. The bit at index n of binary representation of BigInteger will be cleared means converted to zero. Mathematically we can say that it is used to calculate this & ~(1<<n).
Syntax: 
 

public BigInteger clearBit(int n)

Parameter: The method takes one parameter n which refers to the index of the bit needed to be cleared.
Return Value: The method returns the BigInteger after clearing the bit position n.
Throws: The method might throw an ArithmeticException when n is negative.
Examples: 
 

Input: value = 2300, index = 3
Output: 2292
Explanation:
Binary Representation of 2300 = 100011111100
bit at index 3 is 1 so clear the bit at index 3 
Now Binary Representation becomes 100011110100
and Decimal equivalent of 100011110100 is 2292

Input: value = 5482549, index = 0
Output: 5482548

Below program illustrate the clearBit(index) method of BigInteger(). 
 

Java




/*
*Program Demonstrate clearBit() method of BigInteger
*/
import java.math.*;
 
public class GFG {
 
    public static void main(String[] args)
    {
 
        // Creating  BigInteger object
        BigInteger biginteger = new BigInteger("5482549");
 
        // Creating an int i for index
        int i = 0;
 
        // Call clearBit() method on bigInteger at index i
        // store the return BigInteger
        BigInteger changedvalue = biginteger.clearBit(i);
 
        String result = "After applying clearbit at index " +
        i + " of " + biginteger+" New Value is " + changedvalue;
 
        // Print result
        System.out.println(result);
    }
}

Output: 

After applying clearbit at index 0 of 5482549 New Value is 5482548

 

Reference:https://docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html#clearBit(int)
 

My Personal Notes arrow_drop_up
Last Updated : 24 Jun, 2021
Like Article
Save Article
Similar Reads
Related Tutorials