Java HashMap & HashSet Explained with Word Counter Example | Day 30 Java Course

In this video, we break down HashMap and HashSet in Java with super easy examples. You’ll learn how to use HashMap to count word frequencies in a sentence and HashSet to find unique words. By the end, you’ll know exactly when to use each and why they’re so powerful in real-world coding. Perfect for beginners and part of our 100 Days of Java Course!

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