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🚀 Java Interview Questions – Episode 11
💡 What’s the difference between a Set and a List in Java?
Both are part of the Collection framework, but they serve different purposes:
📋 List
➡️ Ordered collection
➡️ Allows duplicate elements
➡️ Elements can be accessed by index
🔸 Implementations: ArrayList, LinkedList
🧮 Set
➡️ Unordered (in general – unless using LinkedHashSet or TreeSet)
➡️ Does NOT allow duplicates
➡️ No index-based access
🔸 Implementations: HashSet, LinkedHashSet, TreeSet
🧠 When to use what?
Use List when you care about order or need duplicates
Use Set when you need uniqueness and don't care about duplicates