Senior Technical Lead and Project Manager

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Senior Technical Lead and Project Manager Interview Questions and Answers

Updated 31 Aug 2024

Q1. weakhashmap vs hashmap

Ans.

WeakHashMap is a subclass of HashMap with weaker references to keys, allowing them to be garbage collected.

  • WeakHashMap is suitable for scenarios where keys are not strongly referenced and can be garbage collected.

  • HashMap is suitable for scenarios where strong references to keys are needed and should not be garbage collected.

  • WeakHashMap is less memory efficient compared to HashMap due to the use of weaker references.

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