Data Structures and Algorithms (DSA) & Java Foundations

This repository contains resources and implementations for core DSA concepts and fundamental Java programming topics.

Remaining DSA Core Topics

Data Structures

• Trees

  • Binary Trees
  • Binary Search Trees (BST)
  • AVL Trees
  • Red-Black Trees
  • B-Trees
  • Tries

• Graphs

  • Graph Representations (Adjacency Matrix, Adjacency List)
  • Graph Traversals (BFS, DFS)
  • Shortest Path Algorithms (Dijkstra's, Bellman-Ford)
  • Minimum Spanning Trees (Prim's, Kruskal's)
  • Topological Sort

• Advanced Data Structures

  • Heaps/Priority Queues
  • Disjoint Set Union (Union-Find)
  • Segment Trees
  • Fenwick Trees (Binary Indexed Trees)
  • Hash Tables (Implementation details)

Algorithms

• Sorting

  • QuickSort
  • MergeSort
  • HeapSort
  • RadixSort
  • CountingSort

• Searching

  • Binary Search and its variations
  • Ternary Search

• Dynamic Programming

  • Memoization
  • Tabulation
  • Common DP Patterns
  • State Machines

• Greedy Algorithms

  • Activity Selection
  • Huffman Coding
  • Fractional Knapsack

• Backtracking

  • N-Queens
  • Sudoku Solver
  • Combinatorial problems

• String Algorithms

  • KMP Algorithm
  • Rabin-Karp
  • Suffix Arrays and Trees
  • String Matching

Remaining Java Foundation Topics

Core Java Concepts

• Object-Oriented Programming in Depth

  • Abstraction techniques
  • Advanced inheritance scenarios
  • Polymorphism best practices
  • Design patterns implementation

• Exception Handling

  • Custom exceptions
  • Exception chaining
  • Try-with-resources
  • Best practices

• Java Collections Framework

  • Performance characteristics
  • Custom implementations
  • Collections utility methods
  • Concurrent collections

• Generics

  • Type erasure
  • Bounded type parameters
  • Wildcards
  • Generic methods and classes

• Multithreading and Concurrency

  • Thread lifecycle and states
  • Synchronization mechanisms
  • Locks and atomic variables
  • Thread pools and executors
  • CompletableFuture
  • Fork/Join framework

Advanced Java

• Java I/O and NIO

  • File handling
  • Serialization
  • Non-blocking I/O
  • Memory-mapped files

• Functional Programming

  • Lambda expressions
  • Method references
  • Functional interfaces
  • Stream API advanced operations

• Reflection and Annotations

  • Dynamic class loading
  • Metaprogramming
  • Custom annotations
  • Annotation processors

• Java Database Connectivity (JDBC)

  • Connection pooling
  • Prepared statements
  • Batch processing
  • Transaction management

• Java APIs

  • Date and Time API
  • Optional class
  • Regular Expressions
  • Internationalization

Implementation Projects

• Graph algorithms visualizer
• Dynamic programming problem solver
• Custom data structure library
• Multithreaded application examples
• Design patterns showcase

Learning Resources

• Books
• Online courses
• Practice websites
• Community forums

Contributing

Feel free to contribute to this repository by adding implementations, improving existing code, or suggesting additional topics.