BigIntegerMath binomial() function | Guava | Java

// Java code to show implementation of
// binomial(int n, int k) method
// of Guava's BigIntegerMath class

import java.math.*;
import com.google.common.math.BigIntegerMath;

class GFG {

    // Driver code
    public static void main(String args[])
    {
        int n = 5;
        int k = 2;

        // Using binomial(int n, int k) method of
        // Guava's BigIntegerMath class
        BigInteger ans = BigIntegerMath.binomial(n, k);

        System.out.println("Binomial Coefficient of "
                           + n + " & " + k
                           + " is: " + ans);

        int n1 = 15;
        int k1 = 9;

        // Using binomial(int n, int k) method of
        // Guava's BigIntegerMath class
        BigInteger ans1 = BigIntegerMath.binomial(n1, k1);

        System.out.println("Binomial Coefficient of "
                           + n1 + " & " + k1
                           + " is: " + ans1);
    }
}

// Java code to show implementation of
// binomial(int n, int k) method
// of Guava's BigIntegerMath class

import java.math.*;
import com.google.common.math.BigIntegerMath;

class GFG {

    // Driver code
    public static void main(String args[])
    {

        try {
            int n = 5;
            int k = 7;

            // Using binomial(int n, int k) method of
            // Guava's BigIntegerMath class
            // This should raise "IllegalArgumentException"
            // as k > n
            BigInteger ans = BigIntegerMath.binomial(n, k);

            System.out.println("Binomial Coefficient of"
                               + n + " & " + k
                               + " is: " + ans);
        }
        catch (Exception e) {
            System.out.println("Exception: " + e);
        }
    }
}