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Showing content from https://www.geeksforgeeks.org/java/biginteger-remainder-method-in-java/ below:

BigInteger remainder() Method in Java

Last Updated : 04 Dec, 2018

The

java.math.BigInteger.remainder(BigInteger big)

method returns a BigInteger whose value is equal to (this BigInteger % big(BigInteger passed as parameter)).The remainder operation finds the remainder after division of this BigInteger by another BigInteger passed as parameter.

Syntax:

public BigInteger remainder(BigInteger big)

Parameter:

The function accepts a single mandatory parameter

big

which specifies the BigInteger Object by which we want to divide this bigInteger object.

Returns:

The method returns the BigInteger which is equal to this BigInteger % big(BigInteger passed as parameter).

Exception

The method throws an

ArithmeticException

- when

big = 0 Examples:

Input: BigInteger1=321456, BigInteger2=31711
Output: 4346
Explanation: BigInteger1.remainder(BigInteger2)=4346. The divide operation 
between 321456 and 31711 returns 4346 as remainder.

Input: BigInteger1=59185482345, BigInteger2=59185482345
Output: 0
Explanation: BigInteger1.remainder(BigInteger2)=0. The divide operation between 
59185482345 and 59185482345 returns 0 as remainder.

Example 1: Below programs illustrate remainder() method of BigInteger class Java


 // Java program to demonstrate remainder() method of BigInteger

import java.math.BigInteger;

public class GFG {

    public static void main(String[] args)
    {

        // Creating 2 BigInteger objects
        BigInteger b1, b2;

        b1 = new BigInteger("321456");
        b2 = new BigInteger("31711");

        // apply remainder() method
        BigInteger result = b1.remainder(b2);

        // print result
        System.out.println("Result of remainder "
                           + "operation between " + b1
                           + " and " + b2 + " equal to " + result);
    }
}

Output:

Result of remainder operation between 321456 and 31711 equal to 4346

Example 2: when both are equal in value. Java


 // Java program to demonstrate remainder() method of BigInteger

import java.math.BigInteger;

public class GFG {

    public static void main(String[] args)
    {

        // Creating 2 BigInteger objects
        BigInteger b1, b2;

        b1 = new BigInteger("3515219485");
        b2 = new BigInteger("3515219485");

        // apply remainder() method
        BigInteger result = b1.remainder(b2);

        // print result
        System.out.println("Result of remainder "
                           + "operation between " + b1
                           + " and " + b2 + " equal to " + result);
    }
}

Output:

Result of remainder operation between 3515219485 and 3515219485 equal to 0

Example 3: program showing exception when BigInteger passed as parameter is equal to zero. Java


 // Java program to demonstrate remainder() method of BigInteger

import java.math.BigInteger;

public class GFG {

    public static void main(String[] args)
    {

        // Creating 2 BigInteger objects
        BigInteger b1, b2;

        b1 = new BigInteger("3515219485");
        b2 = new BigInteger("0");

        // apply remainder() method
        BigInteger result = b1.remainder(b2);

        // print result
        System.out.println("Result of remainder "+
                "operation between " + b1
                + " and " + b2 +
                " equal to " + result);
    }
}

Output:
Exception in thread "main" java.lang.ArithmeticException: BigInteger divide by zero
    at java.math.MutableBigInteger.divideKnuth(MutableBigInteger.java:1179)
    at java.math.MutableBigInteger.divideKnuth(MutableBigInteger.java:1163)
    at java.math.BigInteger.remainderKnuth(BigInteger.java:2167)
    at java.math.BigInteger.remainder(BigInteger.java:2155)
    at GFG.main(GFG.java:16)

Reference: BigInteger remainder() Docs

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