Added 25 solutions

Java/Object Oriented Programming/Java Inheritance II/Solution.java

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+//     Author: Rodney Shaghoulian
+//     Github: github.com/rshaghoulian
+// HackerRank: hackerrank.com/rshaghoulian
+
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.math.*;
+import java.util.regex.*;
+
+class Arithmetic {
+    int add (int a, int b) {
+        return a + b;
+    }
+}
+
+class Adder extends Arithmetic {}
+
+public class Solution{
+    public static void main(String []args) {
+        // Create a new Adder object
+        Adder a = new Adder();
+        
+        // Print the name of the superclass on a new line
+        System.out.println("My superclass is: " + a.getClass().getSuperclass().getName());  
+        
+        // Print the result of 3 calls to Adder's `add(int,int)` method as 3 space-separated integers:
+        System.out.print(a.add(10,32) + " " + a.add(10,3) + " " + a.add(10,10) + "\n");
+     }
+}