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HackerRank : https://www.hackerrank.com/interview/interview-preparation-kit

Basic
- DateHandlerUtility
- Java8StreamReadFile
- ScanInput - StringHandlerUtility
- Test

Warmup
- A_Very_Big_Sum
- Birthday_Cake_Candles
- Compare_the_Triplets - Diagonal_Difference
- MIn_Max_Sum
- Plus_Minus - Simple_Array_Sum
- Solve_Me_First - Staircase
- Time_Conversion

Implementation
- Grading Students - Apple_and_Orange
- Birthday_Chocolate
- Between_Two_Sets
- Breaking_the_Records
- Kangaroo

Challenge
- Test30min1
- AladdinAndCarpet
- CellCompeteTest
- CircularSubstringCompetition
- DocumentManagementSystem
- GameEvent
- TestGCD
- DigitalWallet

Array
- LeftRotation.java
- SolutionFor2DArrayDS

HashDictionary
- CommonSubString.java
- RandsomNote.java

Sort
- BubbleSort.java
- MarkAndToys.java

String
- AlternatingCharacters.java
- MakingAnagrams.java

Greedy
- LuckBalance.java
- MinimumAbsoluteDifference.java

LinkedList
- DoublyLinkedListNode.java
- DoublyLinkedListTest.java
- SinglyLinkedListNode.java
- SinglyLinkedListTest.java

Tree
- BinaryTreeTest.java - Node.java

GSon Example

GraphTheory and Misc Experiments