Reverse String in Java using 2 Pointer Approach | TCS NQT Coding Ques | Easy & Optimal | Most Asked

Master the Reverse String problem using the 2 Pointer Approach in Java—one of the most frequently asked coding questions in TCS NQT and other placement exams.

In this video, you’ll learn:

✅ Optimal 2 pointer technique
✅ Step-by-step explanation with dry run
✅ Clean and efficient Java code
✅ Time & Space Complexity analysis
✅ Interview tips for TCS, Infosys, Wipro

This problem is important for:

TCS NQT Coding Round
Technical Interviews
DSA fundamentals (Strings + Two Pointer technique)

Why this approach?

The two pointer technique reduces unnecessary operations and gives an O(n) time complexity, making it the most efficient way to reverse a string.

Perfect for:
Beginners learning DSA
Students preparing for TCS NQT 2026
Java developers improving problem-solving skills

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