The mod(long x, long m) method of Guava’s LongMath Class accepts two parameters x and m, and used to calculate the value of x modulus under m.
Syntax:
public static long mod(long x, long m)
Parameters: This method accepts two parameters x and m which are of long type to 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(long x, long m) throws ArithmeticException if m <= 0.
Below examples illustrate the mod(long x, long m) method:
Example 1 :
// Java code to show implementation of// mod(long x, long m) method of Guava's// LongMath classimport java.math.RoundingMode;import com.google.common.math.LongMath; class GFG { // Driver code public static void main(String args[]) { long x1 = -77; long m1 = 4; long ans1 = LongMath.mod(x1, m1); // Using mod(long x, long m) // method of Guava's LongMath class System.out.println(x1 + " mod " + m1 + " is : " + ans1); long x2 = 22; long m2 = 6; long ans2 = LongMath.mod(x2, m2); // Using mod(long x, long m) // method of Guava's LongMath class System.out.println(x2 + " mod " + m2 + " is : " + ans2); }} |
Output:
-77 mod 4 is : 3 22 mod 6 is : 4
Example 2:
// Java code to show implementation of// mod(long x, long m) method of Guava's// LongMath classimport java.math.RoundingMode;import com.google.common.math.LongMath; class GFG { static long findMod(long x, long m) { try { // Using mod(long x, long m) // method of Guava's LongMath class // This should throw "ArithmeticException" // as m <= 0 long ans = LongMath.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[]) { long x = 11; long m = -5; try { // Function calling findMod(x, m); } catch (Exception e) { System.out.println(e); } }} |
Output:
java.lang.ArithmeticException: Modulus must be positive
