A structured Data Structures and Algorithms journey using Java.
Focused on building strong problem-solving skills for Java Developer interviews (1–3 years experience level).
This repository contains my daily DSA practice as part of a 30-day structured challenge.
The objective is to:
- Strengthen Core Java fundamentals
- Master problem-solving patterns
- Improve coding speed and logical thinking
- Prepare for technical interviews
- Build consistency through daily practice
Each day focuses on one topic with 5 coding problems.
Difficulty progression: Beginner → Intermediate → Advanced
JavaDSA2026/ │ ├── Day01_Arrays/ │ ├── Problem1_TwoSum.java │ ├── Problem2_MaxSubArray.java │ └── README.md │ ├── Day02_Strings/ │ ├── Problem1_ReverseString.java │ ├── Problem2_AnagramCheck.java │ ├── Day03_LinkedList/ │ └── ...
Each folder includes:
- Problem statement
- Optimized Java solution
- Time & Space Complexity
- Clean and readable code
- Arrays
- Strings
- Recursion
- Sorting & Searching
- Linked List
- Stack
- Queue
- Hashing
- Two Pointer Technique
- Sliding Window
- Binary Search
- Trees
- Heaps
- Graphs
- Backtracking
- Dynamic Programming
- Language: Java
- IDE: IntelliJ IDEA
- Version Control: Git & GitHub
- 80% practical coding
- 20% theory and concept clarity
- Focus on optimization
- Pattern recognition approach
- Daily revision
- Solve 150+ quality DSA problems
- Improve interview confidence
- Crack Java Backend Developer roles
- Build strong logical thinking
Consistency beats motivation.
This repository represents disciplined daily effort toward becoming a better Java developer.
If you're also preparing for Java or backend interviews, feel free to explore and learn along.