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Java
Collection
Interview questions on Collection.
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1. How to get the lowest and last key from a TreeMap?
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2. What are the differences between HashMap and TreeMap?
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3. What is the significance of ConcurrentHashMap? How does it differ from HashMap?
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4. How does LinkedHashMap maintain insertion order? What are its advantages over HashMap?
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5. What is the difference between HashSet and TreeSet? When would you use each?
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6. How does PriorityQueue work, and what are its typical use cases?
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7. Explain the concept of Hashtable. How does it differ from HashMap?
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8. 11. What is the role of the Collection interface in Java? How does it differ from List, Set, and Queue?
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9. 13. What are Collections.synchronizedList, Collections.synchronizedMap, and Collections.synchronizedSet used for?
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10. How does the Set interface handle duplicate elements? What are its common implementations?
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