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Java BigInteger Class | andNot() Method with Example

BigInteger Class andNot() method: Here, we are going to learn about the andNot() method of BigInteger Class with its syntax and example.
Submitted by Preeti Jain, on May 10, 2020

BigInteger Class andNot() method

• andNot() method is available in java.math package.
• andNot() method is used to perform andNot operation between this BigInteger and the given BigInteger (val) [i.e. (this BigInteger) & (~BigInteger val)].
• andNot() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• andNot() method does not throw an exception at the time of performing andNot operation.

Syntax:

    public BigInteger andNot(BigInteger val);

Parameter(s):

• BigInteger val – represents the object to negate & perform and operation with this BigInteger.

Return value:

The return type of this method is BigInteger, it returns BigInteger and its value is calculated by using [(this BigInteger) and (~BigInteger val)].

Example:

// Java program to demonstrate the example 
// of BigInteger andNot() method of BigInteger

import java.math.*;

public class AndNotOfBI {
    public static void main(String args[]) {
        // Initialize two variables str1 and str2
        String str1 = "10";
        String str2 = "4";

        // Initialize two BigInteger objects 
        BigInteger b_int1 = new BigInteger(str1);
        BigInteger b_int2 = new BigInteger(str2);

        System.out.println("b_int1: " + b_int1);
        System.out.println("b_int2: " + b_int2);

        // first perform the not operation on the given BigInteger 
        // b_int2 and then perform and(&) operation with this BigInteger 
        // like 10 & (~4) so the binary representation 
        // of 10 is 1010 and for (~4) is 1011 so when we perform
        // & operation between bits it sets 1 when both bits
        // value are 1 otherwise it sets 0 so the result is
        //[1010 & (~0100 = 1011) = 1010]
        BigInteger andnot_val = b_int1.andNot(b_int2);
        System.out.println("b_int1.andNot(b_int2): " + andnot_val);
    }
}

Output

b_int1: 10
b_int2: 4
b_int1.andNot(b_int2): 10