The binomial(int n, int k) method of Guava’s IntMath class accepts two parameters n and k and calculate the value of the binomial coefficient 
.
If the calculated value overflows the maximum value of an integer than the method returns Integer.MAX_VALUE or in other words the maximum value of an integer.
Syntax :
public static int binomial(int n, int k)
Parameter: This method accepts two parameters n and k and calculate the value of the binomial coefficient .
Return Value : The method returns the binomial coefficient of n and k.
Exceptions : The method binomial(int n, int k) throws IllegalArgumentException if n < 0, k < 0 or k > n.
Below examples illustrate the binomial() method of IntMath class:
Example 1 :
// Java code to show implementation of// binomial(int n, int k) method of Guava's// IntMath classimport java.math.RoundingMode;import com.google.common.math.IntMath; 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 IntMath class int ans = IntMath.binomial(n, k); System.out.println("Binomial Coefficient of " + n + " and " + k + " is : " + ans); int n1 = 15; int k1 = 9; // Using binomial(int n, int k) method of // Guava's IntMath class int ans1 = IntMath.binomial(n1, k1); System.out.println("Binomial Coefficient of " + n1 + " and " + k1 + " is : " + ans1); }} |
Output:
Binomial Coefficient of 5 and 2 is : 10 Binomial Coefficient of 15 and 9 is : 5005
Example 2 :
// Java code to show implementation of// binomial(int n, int k) method of Guava's// IntMath classimport java.math.RoundingMode;import com.google.common.math.IntMath; class GFG { static int findBinomial(int n, int k) { try { // Using binomial(int n, int k) // method of Guava's IntMath class // This should throw "IllegalArgumentException" // as k < 0 int ans = IntMath.binomial(n, k); // Return the answer return ans; } catch (Exception e) { System.out.println(e); return -1; } } // Driver code public static void main(String args[]) { int n = 5; int k = 7; try { // Function calling findBinomial(n, k); } catch (Exception e) { System.out.println(e); } }} |
Output:
java.lang.IllegalArgumentException: k (7) > n (5)