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BigInteger not() Method in Java

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The java.math.BigInteger.not() method is used to find the bitwise-NOT of a BigInteger. This method returns a negative value if and only if this BigInteger is non-negative. The BigInteger.not() method apply bitwise Not operation upon the current bigInteger.


public BigInteger not()

Parameters: The method does not take any parameters.

Return Value: The method returns the bitwise-NOT value of a BigInteger with which it is used.


Input: value = 2300
Output: -2301
Binary of 2300 = 100011111100
NOT of 100011111100 in signed 2's complement is 1111011100000011
Decimal value = -2301.

Input: value = 567689 
Output: -567690

Below program illustrate the not() method of BigInteger():

*Program Demonstrate not() method of BigInteger 
import java.math.*;
public class GFG {
    public static void main(String[] args)
        // Creates  BigInteger object
        BigInteger biginteger = new BigInteger("2300");
        // Call not() method to find ~this
        BigInteger finalvalue = biginteger.not();
        String result = "Result of NOT operation on "
        biginteger + " is " + finalvalue;
        // Print result


Result of NOT operation on 2300 is -2301


Last Updated : 04 Dec, 2018
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