First Repeating Element in java

🔁 First Repeating Element | Java Solution | Find First Duplicate in Array 🔍

In this video, we tackle the First Repeating Element problem using Java. The goal is to find the first element that appears more than once in the array, with the minimum index of its first occurrence.

📌 What’s Inside:

Full Java code walkthrough

Efficient approach using HashSet

Step-by-step explanation

Optimized for interviews

💡 Problem Statement:
Given an array of integers, return the index of the first element that repeats. If no element repeats, return -1.

🎯 Best For:

Java & DSA beginners

Coding interviews

Practicing array + Hashing techniques

⚡ Tip: This is a popular Amazon and Flipkart interview problem!

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