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Iris Software
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Reasoning techinical and coding based ques
I applied via Recruitment Consultant and was interviewed in Oct 2020. There were 6 interview rounds.
I applied via Naukri.com and was interviewed before Mar 2020. There were 4 interview rounds.
Hashtable is synchronized while hashmap is not.
Hashtable is thread-safe while hashmap is not.
Hashtable does not allow null keys or values while hashmap allows one null key and multiple null values.
Hashtable is slower than hashmap due to synchronization.
Hashtable is a legacy class while hashmap is a newer implementation.
Hashmap is not thread-safe while Concurrent Hashmap is thread-safe.
Hashmap is not suitable for multi-threaded environments as it can lead to race conditions and data inconsistencies.
Concurrent Hashmap allows multiple threads to access and modify the map concurrently without any data inconsistencies.
Concurrent Hashmap uses a technique called lock striping to achieve thread-safety.
Concurrent Hashmap is slower than Hashma...
I applied via Approached by Company and was interviewed before Apr 2021. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Apr 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in May 2019. There were 4 interview rounds.
posted on 15 Jun 2022
I applied via Recruitment Consulltant and was interviewed before Jun 2021. There were 4 interview rounds.
I appeared for an interview before Nov 2020.
I appeared for an interview in Sep 2019.
based on 1 interview
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