Highbridge Capital Interview Question for Java Developers


Team: Risk Metrics
Country: United States
Interview Type: Phone Interview




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the main difference is HashTable is syncronized and cant have NULL as key where as HashMap is not syncronized n can have NULL as key.

Collision will come into the picture where KEYS are same.In that case hashmap will go for KEYS.equals() and iterate the linked list in the hashbucket till its find correct KEY.

- sarthakiter July 26, 2012 | Flag Reply
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1. HashMap can have null key and null value
2. All methods of HashTable are synchronize. It is safe to use HashTable when you use multiple threads.

- shoudaw February 19, 2013 | Flag Reply


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