Java.math.BigInteger.subtract() Method

---

---

Description

The java.math.BigInteger.subtract(BigInteger val) returns a BigInteger whose value is (this - val).

Declaration

Following is the declaration for java.math.BigInteger.subtract() method.

public BigInteger subtract(BigInteger val)

Parameters

val − value to be subtracted from this BigInteger

Return Value

This method returns a BigInteger object of value, this - val.

Exception

NA

Example

The following example shows the usage of math.BigInteger.subtract() method.

package com.tutorialspoint;

import java.math.*;

public class BigIntegerDemo {

   public static void main(String[] args) {

      // create 3 BigInteger objects
      BigInteger bi1, bi2, bi3;

      bi1 = new BigInteger("123");
      bi2 = new BigInteger("-123");

      // assign difference of bi1 and bi2 to bi3
      bi3 = bi1.subtract(bi2);

      String str = "Subtraction result: " +bi1+ " - " +bi2+ " = " +bi3;

      // print bi3 value
      System.out.println( str );
   }
}

Let us compile and run the above program, this will produce the following result −

Subtraction result: 123 - -123 = 246