adds license and readme file

Author: anishLearnsToCode

Diff for: LICENSE

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+Copyright 2020 anishLearnsToCode
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit
+persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Diff for: README.md

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+# HackerRank Java (Basic) Skill Certification Test 
+
+![HitCount](http://hits.dwyl.com/anishLearnsToCode/hackerrank-python-basic-skill-test.svg)
+![made-with-java](https://img.shields.io/badge/Made%20with-Java-1f425f.svg)
+![problems-solved](https://img.shields.io/badge/Problems%20Solved-6/6-1abc9c.svg)
+[![license](https://img.shields.io/badge/LICENSE-MIT-<COLOR>.svg)](LICENSE)
+[![hackerrank-python](https://img.shields.io/badge/hackerrank%20certification-python-1f72ff.svg)](https://github.com/anishLearnsToCode/hackerrank-python-basic-skill-test)
+
+Took this test on HackerRank [here](https://www.hackerrank.com/skills-verification) 
+on __14th July 2020__. 
+Certificate can be viewed [here](https://www.hackerrank.com/certificates/e7bb326e632c)
+
+## Programs 
+- [How Will You Compare?](src/HowWillYouCompare.java)
+- [The Adder Class](src/TheAdderClass.java)
+- [Map Interface Question (MCQ)](map-interface-question.md)
+- [Bit Puzzle (MCQ)](bit-puzzle.md)
+- [Threads Question (MCQ)](test-thread.md)
+- _I have forgotten the 6th question 😋_ (so good luck with that)

Diff for: bit-puzzle.md

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+# BitPUzzle Question
+
+__Answer:__ 2

Diff for: map-interface-question.md

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+# Map Interface Question
+
+__Answer:__ 
+The following classes implement the Map Interface:
+- HashMap
+- HashTable
+- TreeMap
+- ConcurrentHashMap
+- LinkedHashMap

Diff for: src/BitPuzzle.java

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+public class BitPuzzle {
+    public static void main(String[] args) {
+        try {
+            Float f = new Float("3.0");
+            int x = f.intValue();
+            byte b = f.byteValue();
+            double d = f.doubleValue();
+            System.out.println(x + b + d);
+        } catch (NumberFormatException exception) {
+            System.out.println("ahhhh");
+        }
+    }
+}

Diff for: src/HowWillYouCompare.java

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+import java.util.Arrays;
+
+public class HowWillYouCompare {
+    private static class Comparator {
+        public boolean compare(int a, int b) {
+            return a == b;
+        }
+
+        public boolean compare(String a, String b) {
+            return a.equals(b);
+        }
+
+        public boolean compare(int[] a, int[] b) {
+            return Arrays.equals(a, b);
+        }
+    }
+}

Diff for: src/TestThread.java

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+class SampleDemo implements Runnable {
+    private Thread t;
+    private String threadName;
+
+    SampleDemo(String threadName) {
+        this.threadName = threadName;
+    }
+
+    @Override
+    public void run() {
+        while (true) {
+            System.out.println(threadName);
+        }
+    }
+
+    public void start() {
+        if (t == null) {
+            t = new Thread(this, threadName);
+            t.start();
+        }
+    }
+}
+
+public class TestThread {
+    public static void main(String[] args) {
+        SampleDemo A = new SampleDemo("A");
+        SampleDemo B = new SampleDemo("B");
+        B.start();
+        A.start();
+    }
+}

Diff for: src/TheAdderClass.java

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+abstract class Calculator {
+    abstract int add(int a, int b);
+}
+
+class Adder extends Calculator {
+
+    @Override
+    int add(int a, int b) {
+        return a + b;
+    }
+}
+
+public class TheAdderClass {
+}
+
+

Diff for: test-thread.md

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+# TestThread Question (MCQ)
+
+__Answer:__ No pattern can be determined