BigInteger negate() Method in Java (original) (raw)

Last Updated : 11 Jul, 2025

Prerequisite: BigInteger Basics The java.math.BigInteger.negate() method returns a BigInteger whose value is (- this). negate() method will change the signed bit of BigInteger. Syntax:

public BigInteger negate()

Parameters: The method does not accept any parameter. Return Value: The method returns the operation of (- this). Examples:

Input: value = 2300 Output: -2300 Explanation: Binary signed 2's complement of 2300 = 0000100011111100 Signed bit are 0000 change sign bit to 1111 so negate of 0000100011111100 in signed 2's complement is 1111011100000100 Decimal value = -2300.

Input: value = 567689 Output: -567689

Below program illustrates negate() method of BigInteger.

Java `

/* *Program Demonstrate negate() method of BigInteger / import java.math.;

public class GFG {

public static void main(String[] args)
{

    // Create  BigInteger object
    BigInteger biginteger = new BigInteger("2300");

    // Call negate() method to find -this
    BigInteger finalvalue = biginteger.negate();
    String result = "Result of negate operation on " + 
    biginteger + " is " + finalvalue;

    // Prints result
    System.out.println(result);
}

}

`

Output:

Result of negate operation on 2300 is -2300

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