solves java inheritence

anishLearnsToCode · anishLearnsToCode · commit 4dd512466c63 · 2020-05-13T11:53:14.000+05:30
diff --git a/src/JavaInterface.java b/src/JavaInterface.java
@@ -0,0 +1,38 @@
+// https://www.hackerrank.com/challenges/java-interface/problem?h_r=next-challenge&h_v=zen&h_r=next-challenge&h_v=zen&h_r=next-challenge&h_v=zen&h_r=next-challenge&h_v=zen
+
+import java.util.Scanner;
+
+public class JavaInterface {
+    public static void main(String[] args) {
+        MyCalculator my_calculator = new MyCalculator();
+        System.out.print("I implemented: ");
+        ImplementedInterfaceNames(my_calculator);
+        Scanner scanner = new Scanner(System.in);
+        int n = scanner.nextInt();
+        System.out.print(my_calculator.divisor_sum(n) + "\n");
+        scanner.close();
+    }
+
+    private 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);
+        }
+    }
+}
+
+interface AdvancedArithmetic {
+    int divisor_sum(int number);
+}
+
+class MyCalculator implements AdvancedArithmetic {
+    @Override
+    public int divisor_sum(int number) {
+        int result = 1 + (number > 1 ? number : 0);
+        for (int index = 2 ; index < number ; index++) {
+            result += number % index == 0 ? index : 0 ;
+        }
+        return result;
+    }
+}
