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Interview Questions and Answers for 'Coupang' - 2 question(s) found - Order By Newest

Very frequently asked across all types of companies.
  Q1. Difference between HashMap and Hashtable?Core Java
Ans. Hashtable is synchronized whereas HashMap is not.HashMap allows null values whereas Hashtable doesnt allow null values.

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   Like         Discuss         Correct / Improve     java   collections   hashmap   map   hashtable   hashmap vs hashtable     Asked in 14 Companies      basic        frequent

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Related Questions

 Why HashTable has been deprecated ?
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  Which interface does java.util.Hashtable implement ?
  Which of the following is false ?
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a. HashTable
b. HashMap
c. TreeMap
d. LinkedHashMap
 Difference between concurrentHashMap and HashTable ?


 Q2. Why do you want to leave your current job ?General
Ans. The most effective and acceptable reasons for leaving your current job should be positive e.g. moving forward in your life or career

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   Like         Discuss         Correct / Improve          Asked in 21 Companies


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Explain OOPs Principles

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