HackerRank Java Exception Handling problem solution

HackerRank Java Exception Handling problem solution – In this HackerRank Java Exception Handling problem in java programming, You are required to compute the power of a number by implementing a calculator. Create a class MyCalculator which consists of a single method long power(int, int).

This method takes two integers, n and p, as parameters and finds n^p. If either n or p is negative, then the method must throw an exception which says “n or p should not be negative”. Also, if both n and p are zero, then the method must throw an exception which says “n and p should not be zero”

HackerRank Java Exception Handling problem solution.

import java.util.Scanner;
class MyCalculator {

public static int power(int n, int p) throws Exception{
    if(n < 0 || p < 0){
        throw new Exception ("n or p should not be negative.");
    }else if(n==0 && p ==0){
        throw new Exception("n and p should not be zero.");
    }

     else {
        return ((int)Math.pow(n,p));
    }
}
}

public class Solution {
    public static final MyCalculator my_calculator = new MyCalculator();
    public static final Scanner in = new Scanner(System.in);
    
    public static void main(String[] args) {
        while (in .hasNextInt()) {
            int n = in .nextInt();
            int p = in .nextInt();
            
            try {
                System.out.println(my_calculator.power(n, p));
            } catch (Exception e) {
                System.out.println(e);
            }
        }
    }
}

Second solution

import java.util.Scanner;
class MyCalculator {

public static int power(int n, int p) throws Exception{
    if(n < 0 || p < 0){
        throw new Exception ("n or p should not be negative.");
    }else if(n==0 && p ==0){
        throw new Exception("n and p should not be zero.");
    }

     else {
        return ((int)Math.pow(n,p));
    }
}
}

public class Solution {
    public static final MyCalculator my_calculator = new MyCalculator();
    public static final Scanner in = new Scanner(System.in);
    
    public static void main(String[] args) {
        while (in .hasNextInt()) {
            int n = in .nextInt();
            int p = in .nextInt();
            
            try {
                System.out.println(my_calculator.power(n, p));
            } catch (Exception e) {
                System.out.println(e);
            }
        }
    }
}