Awesome

Data-Structures-in-Java

This repository contains various data structures and provide insights about them. Feel free to create an issue if you see one in any of the implementations.

Data Structures :
These is just a basic set, we have lot of other data structures as well,

• Linear

  • Index Based
    • Arrays
  • Non Index Based
    • List
    • Queue
    • Stack

• Non Linear

  • Hash Tables
  • Set
  • Priority Queue
  • Tree
    • Balanced
      • Red Black Tree
      • AVL Tree
      • Splay Tree
    • Non Balanced
      • Binary Tree
      • Binary Search Tree
      • B Tree
      • Trie

• Choosing the right data structure

Below topics/problems are covered as of now.

1. Strings

• String Introduction
• StringBuilder Implementation

2. Arrays

• Arrays Introduction
• Basic operations on Arrays
• Associative Array
• Sparse Array
• Pair
• Tuple
• ArrayList Implementation

3. LinkedList

• Linked List Introduction
• Singly LinkedList Implementation
• Doubly LinkedList Implementation
• Circular LinkedList Implementation

4. Stack

• Stack Introduction
• Simple stack from list
• Array based Implementation
• LinkedList based Implementation
• Queue based Implementation

5. Queue

• Queue Introduction
• Array based Implementation
• LinkedList based Implementation
• Stack based Implementation

6. Vector

• Vector Introduction
• Vector Implementation

7. Matrix

• Matrix Introduction
• Sparse Matrix

8. Trees

• Introduction
• Binary Tree
• Binary Search Tree
• AVL Tree
• Splay Tree
• B Tree
• B+ Tree
• Segment Tree
• Red Black Tree
• K Dimensional Tree
• Suffix Tree
• A B Tree

9. Graphs

• Introduction
• How graphs are represented in memory
• Graph Implementation
• MultiGraph Implementation
• BFS for Graphs
• DFS for Graphs

10. Heap

• Introduction
• Binary Heap
  • Min Heap
  • Max Heap
• Binomial Heap
• Fibonacci Heap
• Weak Heap

11. Hashing

• Introduction
• Iterator v/s Enumeration
• HashTable v/s HashMap
• HashCode and Equals Contract
• Bloom Filter
• Lookup Table
• Collision Handling
  • Separate Chaining
  • Linear Probing
  • Double Hashing
• HashMap Implementation
• ConcurrentHashMap Introduction
• ConcurrentHashMap Implementation
• ConcurrentModification Exception
• WeakHashMap Implementation
• HashTable Implementation
• Distributed HashTable
• HashSet Implementation
• HashList Implementation
• Dictionary Implementation
• MultiMap

12. Set

• Introduction
• Set Implementation
• MultiSet

13. Priority Queue

• Introduction
• Array based Implementation
• Stack based Implementation
• Dequeue Implementation
• Skip List

14. Trie

• Introduction
• Trie Implementation

15. Treap

• Introduction
• Treap Implementation

16. Cache

• Introduction
• LRU Cache
• MRU Cache

17. Miscellaneous

• Bag
  • Linked List Based
  • Binary Search Tree Based

18. Common Utils

• StringUtils
• NumberUtils
• ArrayUtils
• BooleanUtils
• CollectionUtils
• MapUtils

19. Iterators

• Standard Iterator
• Deep Iterator
• Filtering Iterator
• Hopping Iterator
• InOrder Iterator
• LevelOrder Iterator
• MaxIterator Iterator
• MultiIterator Iterator
• Peek Iterator
• PreOrder Iterator
• Rotating Iterator