day-17-more-exceptions.java

import java.util.*;
import java.io.*;

class Calculator {
    
    int power (int n, int p) throws Exception {
        if (n < 0 || p < 0) {
            throw new Exception("n and p should be non-negative");
        } else {
            int result = (int) Math.pow(n, p);
            return result;
        }   
    }  
}

class Solution {

    public static void main(String []argh) {
        Scanner in = new Scanner(System.in);
        int T=in.nextInt();
        while(T-->0) {
            int n = in.nextInt();
            int p = in.nextInt();
            Calculator myCalculator = new Calculator();
            try {
                int ans=myCalculator.power(n,p);
                System.out.println(ans);     
            } catch(Exception e) {
                System.out.println(e.getMessage());
            }
        }

    }
}