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Java Guava | mod() method of IntMath Class

The mod(int x, int m) method of Guava’s IntMath class accepts two parameters x and m and used to calculate the value of x modulus under m.

Syntax :

public static int mod(int x, int m)

Parameters: This method accepts two parameters x and m which are of integer types and calculate x modulo m.

Return Value : The method returns x mod m that will be a non-negative value less than m.

Exception : The method mod(int x, int m) throws ArithmeticException if m <= 0.

Below examples illustrate the mod(int x, int m) method:

Example 1 :




// Java code to show implementation of
// mod(int x, int m) 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 x1 = -84;
        int m1 = 5;
  
        int ans1 = IntMath.mod(x1, m1);
  
        // Using mod(int x, int m)
        // method of Guava's IntMath class
        System.out.println(x1 + " mod " + m1 + " is : " + ans1);
  
        int x2 = 14;
        int m2 = 6;
  
        int ans2 = IntMath.mod(x2, m2);
  
        // Using mod(int x, int m)
        // method of Guava's IntMath class
        System.out.println(x2 + " mod " + m2 + " is : " + ans2);
    }
}


Output :

-84 mod 5 is : 1
14 mod 6 is : 2

Example 2 :




// Java code to show implementation of
// mod(int x, int m) method of Guava's
// IntMath class
import java.math.RoundingMode;
import com.google.common.math.IntMath;
  
class GFG {
  
    static int findMod(int x, int m)
    {
        try {
            // Using mod(int x, int m)
            // method of Guava's IntMath class
            // This should throw "ArithmeticException"
            // as m <= 0
            int ans = IntMath.mod(x, m);
  
            // Return the answer
            return ans;
        }
        catch (Exception e) {
            System.out.println(e);
            return -1;
        }
    }
  
    // Driver code
    public static void main(String args[])
    {
        int x = 14;
        int m = -3;
  
        try {
            // Function calling
            findMod(x, m);
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}


Output :

java.lang.ArithmeticException: Modulus -3 must be > 0

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

Dominic
Dominichttp://wardslaus.com
infosec,malicious & dos attacks generator, boot rom exploit philanthropist , wild hacker , game developer,
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