Interview Questions and Answers for 'Centurylink' | Search Java Interview Question

Interview Questions and Answers for 'Centurylink' - 4 question(s) found - Order By Newest

Q1. What is the use of HashCode in objects ?

Core Java

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Ans. Hashcode is used for bucketing in Hash implementations like HashMap, HashTable, HashSet etc.

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_{Like Discuss Correct / Improve java string hashcode hash code string comparison hashtable Verilogue Deutche bank Kasmo Cloud Solutions Collabera Virtusa Consulting CenturyLink HCL Technologies Tata Consultancy (TCS) Accenture Accenture India Polaris Amdocs Cognizant (CTS) IBM nagarvision Synechron Global Logic basic frequent}

Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback)

Q2. Explain Singleton Design Pattern ?

Design

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Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html

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_{Like Discuss Correct / Improve java design pattern singleton at&t ebay fidelity india united healthcare india JP Morgan Tata Consultancy (TCS) HCL Technologies Wipro Infosys Tibco Edline JPMorgan Chase Sabre Bank Of America India Fidelity Samsung India Robert Bosch India ZapCom Goldman Sachs India Eze Software ZapCom Dailymotion Netflix CenturyLink Misfit TSYS ECI Telecom Dealogic Robert Bosch Redolent EFI CSX Prolific Validus Birlasoft AdNovum NCR Ray Business Technologies Nagravision Unify SLK Group DBS Bank
Razorthink GST Global USAA Ray Technologies Ray Business Technologies (Raybiztech) Raybiztech Deloitte intermediate frequent}

Frequently asked in high end product companies. Frequently asked in Deloitte.

Q3. How is Hashmap internally implemented in Java ?

Core Java

^{2016-12-06 08:49:37}

Ans. https://www.quora.com/How-is-Hashmap-in-Java-implemented-internally-What-are-the-pros-and-cons-to-use-it-What-are-the-complexities-it-provides-for-insert-delete-and-lookup/answer/Anshudeep-Bajpai?srid=iwnK

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_{Like Discuss Correct / Improve hashmap collections hashmap internal implementation Veritas Sophos Salesforce United Health Group (UHG) Priceline.com Roposo virtusa polaris Tata Consultancy (TCS) Hexaware Technologies Shiksha Infotech Synechron Anand Rathi Virtusa CenturyLink Kasmo Cloud Solutions Dark Horse Deloitte expert frequent}

Q4. Can you tell us a use case of reflection in java that you have applied ?

Design

^{2019-05-28 14:20:18}

^{This question was recently asked at 'CenturyLink'.This question is still unanswered. Can you please provide an answer.}

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_{Like Discuss Correct / Improve reflection CenturyLink}

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