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  1. Prepare
  2. Java
  3. Object Oriented Programming
  4. Java Interface
  5. Discussions

Java Interface

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  • tuanhtran_dev
     + 0 comments
    import java.util.*;
interface AdvancedArithmetic{
  int divisor_sum(int n);
}

//Write your code here
class MyCalculator implements AdvancedArithmetic{
    
    @Override
    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 Solution{
    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);
        }
    }
}

  • deepakchilla106
     + 1 comment
    import java.io.*;
import java.util.*;

interface divSum {
    int divisor_sum(int n);
}

class AdvancedArithmetic {
    int divisor_sum(int n){
        int sum = 0;
        for(int i=1; i<=n; i++) {
            if(n%i==0)
                sum = sum + i;
        }
        return(sum);
    }
}

public class Solution {
    
    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        AdvancedArithmetic a = new AdvancedArithmetic();
        int ans = a.divisor_sum(n);
        System.out.println("I implemented: "+a.getClass().getName());
        System.out.print(ans);
    }
}

  • nikhiljhambi
     + 0 comments

    class MyCalculator implements AdvancedArithmetic { public int divisor_sum(int n) { int sum = 0; int sqrt = (int) Math.sqrt(n); for (int i = 1; i <= sqrt; i++) { if (n % i == 0) { sum += i + n / i; } }

        if (sqrt * sqrt == n) {
        sum -= sqrt;
    }
    return sum;
}

    }

  • tientvfx20270
     + 0 comments

    //Write your code here class MyCalculator implements AdvancedArithmetic{ @Override public int divisor_sum(int n){ int sum = n; // n : dat sum = n , vi so nguyen n khong the chia het cho so co //gia tri > hon mot nua gia tri cua no (n/2) for(int i = 1; i<=n/2; i++){ // i<=n/2 : vi co truong hop 6 van chia het cho 3 if(n%i==0){ sum+=i; } } return sum; } }

  • Ayush_Vishal
     + 0 comments

    Java Solution

     class MyCalculator implements AdvancedArithmetic{
 public int divisor_sum(int n){
     int sum =n;
     for(int i=1;i<=n/2;i++){
         if(n%i==0){
             sum=sum+i;
     }
 }
 return sum;

    }

    }