Java Collections Framework-Part10 |Hashtable Concept | HashMap Vs Hashtable | Hands-on

Topics :
-----------
1) Hashtable Concept
2) HashMap Vs Hashtable
3) Hands-on

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[anmolverma]

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A gem for anyone who wants to learn Collections Framework.
Thank You sir.

[User-meme]

🙏🏻Sir, thanks for sharing these videos.
I have learned so much and practiced everything.
Difference between
HashMap and HashTable:
1. HM: methods non synchronized
HT: methods synchronized
2. HM: multiple threads are allowed at a
time.
HT: only one thread is allowed at a
time
3. HM: Not thread safe.
HT: Thread safe.
4. HM: performance is fast.
HT: performance is slow.
5. HM: One Null is allowed as Key and
multiple Nulls are allowed as
Values.
HT: Null values are not at all
accepted.
iterator() method working fine with
HasMap, but in HashTable it’s throwing ClassCast Exception.
Thank you once again Sir🙏🏻

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[pravinsingh]

Review :
The whole playlist is amazing to watch and learn without getting bored, sir has explained the concepts in clear and concise manner! Kudos!

[CRICKET-xezf]

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All concepts have been taught in a very understandable manner.
Would like to give 5/5 stars to you, Sir, for your excellent teaching.
🌟🌟🌟🌟🌟
One quick question, Sir -> In HashTable, only one thread is access the method at a time but what is thread?
Is it kind of a machine or user?

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