8 | Java | Find duplicate characters using Collections | Examples

Published: 12 September 2024
on channel: Jaya Krishna

Welcome to our Java tutorial series! In this video, we demonstrate how to find duplicate characters in a string using Collections in Java. Follow along as we explain the logic, write the code, and provide practical examples, perfect for coding interview preparation and Java interviews.

In this video, you will learn:

How to leverage Java Collections such as HashMap or HashSet to find duplicate characters efficiently.
Step-by-step approach to iterate through characters, count occurrences, and store results in a Collection.
Practical coding examples and execution.
Tips and tricks for optimizing your solution using Java's built-in data structures.

Topics Covered:
1. Introduction to Finding Duplicate Characters Using Collections
2. Explanation of HashMap and HashSet for Duplicate Detection
3. Writing Java Code to Identify Duplicate Characters
4. Detailed Walkthrough of the Code
5. Execution and Testing the Solution
6. Best Practices for Using Collections in Java

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