JavaProgramming/HackerRank/FiftyTwo.java at main · Varadraj75/JavaProgramming · GitHub

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package HackerRank;

import java.util.*;

interface AdvancedArithmetic{

int divisor_sum(int n);

}

//Write your code here

class MyCalculator implements AdvancedArithmetic {

public int divisor_sum(int n) {

int sum = 0;

for (int i = 1; i <= n; i++) {

if (n % i == 0) {

sum += i;

}

return sum;

}

class FiftyTwo {

public static void main(String []args){

MyCalculator my_calculator = new MyCalculator();

System.out.print("I implemented: ");

ImplementedInterfaceNames(my_calculator);

Scanner sc = new Scanner(System.in);

int n = sc.nextInt();

System.out.print(my_calculator.divisor_sum(n) + "\n");

sc.close();

}

* ImplementedInterfaceNames method takes an object and prints the name of the interfaces it implemented

static void ImplementedInterfaceNames(Object o){

Class[] theInterfaces = o.getClass().getInterfaces();

for (int i = 0; i < theInterfaces.length; i++){

String interfaceName = theInterfaces[i].getName();

System.out.println(interfaceName);

}

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