Find Duplicate Elements in an Array in Java | Interview Question

Опубликовано: 28 Июль 2026
на канале: Tips and Tricks | Learn to Code
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🚀 In this video, you'll learn how to find duplicate elements in Java using multiple approaches that are commonly asked in coding interviews.

We'll cover:

✅ Brute Force (Nested Loops)
✅ HashSet Approach
✅ HashMap Approach
✅ Java 8 Streams
✅ Collections.frequency()
✅ Sorting Approach

Each method is explained with code examples, time complexity, and when to use it in real projects.

📌 Topics Covered:
✔ Find duplicate elements in an array
✔ Find duplicate strings
✔ Java Collections
✔ HashSet vs HashMap
✔ Java 8 Streams
✔ Coding Interview Preparation
✔ Time Complexity Analysis

🌐 Read the detailed article:
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