In this video, I explained how to solve the "Longest Substring Without Repeating Characters" problem using the Sliding Window Technique in Java.
Topics Covered:
✔ Understanding the problem statement
✔ Sliding Window concept
✔ HashSet usage
✔ Step-by-step dry run
✔ Time Complexity and Space Complexity
✔ Java code explanation
Problem Example:
Input: "abcabcbb"
Output: 3
Concepts Used:
- Sliding Window
- Two Pointers
- HashSet
- String Manipulation
This is one of the most important coding interview questions frequently asked in companies like Google, Amazon, Microsoft, and Meta.
#Java #LeetCode #DSA #SlidingWindow #CodingInterview #JavaProgramming #Algorithms
