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Interview Questions and Answers for 'Deutsche Bank' - 5 question(s) found - Order By Newest

Frequently asked in Infosys and HCL Technologies ( Based on 2 feedback )
 Q1. What are different ways of object creation in Java ?Core Java
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Ans. Using new operator - new xyzClass()

Using factory methods - xyzFactory.getInstance( )

Using newInstance( ) method - (Class.forName(xyzClass))emp.newInstance( )

By cloning an already available object - (xyzClass)obj1.clone( )

  Sample Code for object initialization using clone

  Sample Code for object initialization using getInstance

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   Like      Discuss      Correct / Improve     java   oops   object creation   new operator   class.forname   cloning   ebay     Intelligrape  Infosys  Polaris  British Telecom (BT)  Vyom Labs  Deutsche Bank  HCL Technologies   Genpact  Thomson Reuters      expert


Very frequently asked. Favorite question in Walk in Drive of many Indian service companies.
  Q2. What is the difference between ArrayList and LinkedList ?Core Java
admin
info@buggybread.com
Ans. Underlying data structure for ArrayList is Array whereas LinkedList is the linked list and hence have following differences -

1. ArrayList needs continuous memory locations and hence need to be moved to a bigger space if new elements are to be added to a filled array which is not required for LinkedList.

2. Removal and Insertion at specific place in ArrayList requires moving all elements and hence leads to O(n) insertions and removal whereas its constant O(1) for LinkedList.

3. Random access using index in ArrayList is faster than LinkedList which requires traversing the complete list through references.

4. Though Linear Search takes Similar Time for both, Binary Search using LinkedList requires creating new Model called Binary Search Tree which is slower but offers constant time insertion and deletion.

5. For a set of integers you want to sort using quicksort, it's probably faster to use an array; for a set of large structures you want to sort using selection sort, a linked list will be faster.

  Sample Code for ArrayList

  Sample Code for LinkedList

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   Like      Discuss      Correct / Improve     collections   java   data structures   arraylist   linkedlist     Deutsche Bank  Overstock.com  HCL Technologies  Infosys  EBay  The Advisory Board Company  Accuity  JC Penney  Cerner  Chase  Amazon  Deloitte  Deegit  Tata Consultancy  Cognizant (CTS)  IBM  Accenture  Mindtree  ESRI  QwikCilver Solutions  TMC Bonds  GumGum  EMC  Yelp  Classteacher Learning System  FactSet  Simply Hired  SalesForce  Royall & Company  Indeed  eClinicalWorks  TravelClick  State Farm  Manhattan Associates  GoEuro  Veeva Systems  Ness Technologies  Marlabs  Rolta  Volante Technologies  Happiest Minds Technologies  Coviam  Velocify  zanox  SimplyHired  IDBI Intech  Wissen Infotech  Nike  OnDot  PexSupply  Pramati Technologies  Credit Agricole  Mastek  Six Dee Telecom  Accuity  Kellton Tech  conduent  citrix  NEC Technologies      Basic        frequent

Try 1 Question(s) Test


Very frequently asked.Usually among first few questions.
  Q3. What is MVC ? Design
Anonymous
Ans. MVC is a Design Pattern that facilititates loose coupling by segregating responsibilities in a Web application

1. Controller receives the requests and handles overall control of the request
2. Model holds majority of the Business logic, and
3. View comprise of the view objects and GUI component

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Try 1 Question(s) Test


 Q4. Create a custom hashmap using synchronization.Core Java2017-12-26 10:11:03

 This question was recently asked at 'Deutsche Bank'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve     hashmap  coding     Deutsche Bank      advanced


 Q5. What is hashing ?data structure2018-06-25 12:22:40

 This question was recently asked at 'Deutsche Bank'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve          Deutsche Bank




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