What is Java Guava | binomial() method of IntMath Class?

In this article, we will learn Java Guava | binomial() method of IntMath Class,This free JAVA tutorial for complete beginners will help you learn JAVA from scratch.

Java Guava | binomial() method of IntMath Class️‍🔥

binomial(int n, int k)

Guava’s IntMath class

n

k

Syntax :

public static int binomial(int n, int k)

Parameter

n

k

Return Value :

Exceptions :

IllegalArgumentException

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>

Example 1 :

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

Reference :

https://google.github.io/guava/releases/20.0/api/docs/com/google/common/math/IntMath.html#binomial-int-int-