Reverse Words in a String | Leetcode 151 | 🚀 3 Optimized Ways (Java) | DSA Placement Course

Reverse Words in a String | Leetcode 151 | 3 Optimized Ways (Java) | DSA Placement Course

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In this video, we solve one of the most popular string interview problems — Reverse Words in a String (Leetcode 151).
This question is frequently asked in FAANG interviews, top product-based companies, and almost every coding test.
If you are preparing for placements, coding interviews, Java DSA, or Leetcode, this video will give you a complete understanding.

🚀 What You Will Learn in This Video
✔ What "Reverse Words in a String" actually means
✔ How to solve Leetcode 151 using 3 optimized Java approaches
✔ Clean and efficient logic for interviews
✔ Step-by-step coding explanation for beginners
✔ How to handle extra spaces in strings
✔ Time & space complexity analysis
✔ Best way to write clean Java code in interviews

This video is part of our DSA Placement Course, specially designed to help you crack coding rounds confidently.

🔥 Why This Question Is Important
This problem is commonly asked in:
Amazon
Microsoft
Google
MakeMyTrip
MentorGraphics
Cisco
Walmart
Service-based & product-based company interviews

📘 Timestamps
00:00 – Introduction
00:17 – Problem Explanation
00:55 – Approach 1: Using trim() and split() methods
06:08 – Approach 2: Using StringBuilder and trim() split() methods
18:30 – Approach 3: Without trim() and split() methods
20:33 – All three Approach
20:39 – DSA Notes

✨ Related Titles
Reverse Words in a String Leetcode 151 | Java + DSA Interview Preparation
Strings – Reverse Words in a Sentence | DSA Placement Series
Leetcode 151 – Reverse Words in a String | Java Explanation
Reverse Words in String | Coding Interview Question | Java
Leetcode Problem 151 | Reverse Words | Medium Difficulty | Java
Reverse Words in String III (Leetcode 557) | Java Solutions
Reverse Words in a String | C++, Java, Python | Interview Guide
Reverse Words in a String – Asked in Amazon, Microsoft, MMT

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