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Interview Questions and Answers for 'Fiserv' - 3 question(s) found - Order By Newest

Very frequently asked. Favorite question in Walk in Drive of many Indian service companies.
  Q1. Difference between TreeMap and HashMap ?Core Java
Anonymous
Ans. They are different the way their elements are stored in memory. TreeMap stores the Keys in order whereas HashMap stores the key value pairs randomly.

  Sample Code for treemap

  Sample Code for hashmap

 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     java   collections   map   treemap   hashmap     Amber Road  CTS (Cognizant)  ION Trading  DataMetica  Accenture  The Advisory Board Company  BidGely  Infosys  Tata Consultancy (TCS)  HCL Technologies  Wipro  Booking.com  MakeMyTrip  Garena Online  Garmin  ION Trading  Accuity  Palantir Technologies  Books International  Wealthfront  Marin Software  Garmin  IBM  Global Logic  Fiserv  Cumulus Systems  CCTS  UST Global  Cumulus Systems   Apcolite      basic        frequent

Try 1 Question(s) Test


Related Questions

  Which of the following collections stores its elements in insertion Order ?

a. HashMap
b. TreeMap
c. LinkedHashMap
d. LinkedMap
  What is comparator interface used for ?
  Which of the following collection maintain its elements in Natural Sorted order ?
  Which are the sorted collections ?
  How can we reverse the order in the TreeMap ?
  TreeMap orders the elements on which field ?
  How TreeMap orders the elements if the Key is a String ?
  Can we add heterogeneous elements into TreeMap ?
  Will it create any problem if We add elements with key as user defined object into the TreeMap ?


Almost sure to be asked in every company using any Dependency Injection framework ( Spring, Guice etc )
  Q2. What is Dependency Injection or IOC ( Inversion of Control ) ?Design

Ans. It is a Design Pattern that facilitates loose coupling by sending the dependency information ( object references of dependent object ) while building the state of the object. Objects are designed in a manner where they receive instances of the objects from other pieces of code, instead of constructing them internally and hence provide better flexibility.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     design patterns   ioc ( Inversion of Control )  dependency injection     Nucleus Software Exports  HCL Technologies  Tata Consultancy (TCS)  HCL  Infosys  Cognizant (CTS)  Barclays  General Electric  Infosys Technologies  Elsevier  Sabre  ZapCom  Nike  Sogeti  CSG International  Lowes  DWS  Mitsui Bussan Logistics  Payment Processing Partners  Liquidnet  AmTrust Financial  VectorForm  Cybage  Vanderbilt University  Cigniti  Accenture  Ball Aerospace  GE Healthcare  1-800 Contacts  VinSolutions  Arrow Electronics  Monitise  Avenue Code  Thetus Corporation  Shodogg  Levi9  BuildLinks  Suyati Technologies  Kanerika Software  Alliance Inspection Management  Promega  Victorious  Zoll Data Systems  Parkmobile  PerceptiMed  Crate and Barrel  Carbonite  Concur  Codazen  GlobalLogic  AccuSoft  Attinad  Tillster  AppRiver  TrustPilot  Pearson  Kony  Art Technology Group  VeriSign  Accion Labs  IGS Energy  National Bankruptcy Services  RealPage  Green Dot  Indecomm Global  bebo Technologies  Open Solutions  Xoriant  NCR  Macmillan Cancer Support  NetSuite  Asynchrony Labs  DealDash  Vizio  Fiserv  Federal Reserve Bank of Minneapolis  Tinder  FICO  Trustwave      intermediate        frequent


Related Questions

  Name few Dependency Injection frameworks ?
 What are different types of dependency injections ?
  What are the various Auto Wiring types in Spring ?
  What is the difference betweeen @Inject and @Autowired ?
 Which of the following Java features facilitates Dependency Injection - Inheritance or Composition ?
 What are the different ways in which dependency injection can be done using Spring Framework ?
 Difference between constructor and setter injection ?
 What are the benefits of Dependency Injection or IOC ?
 Which of the OOP's features facilitate dependency injection ?


Very frequently asked Hibernate interview question. Frequently asked in TCS ( based on 2 feedback )
  Q3. What are different types of associations in Hibernate ?Hibernate
Admin
info@buggybread.com
Ans. There are 4 types of associations in Hibernate

One to One
One to Many
Many to One
Many to Many

 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     hibernate   associations     Overstock.com  BirlaSoft  Fiserv  Overstock.com  Tata Consultancy (TCS)  Wipro  Tech Mahindra  Infosys  HCL Technologies  Fidelity  Sabre        frequent


Related Questions

  What is Lazy Initialization in Hibernate ?
  What are the ways to avoid LazyInitializationException ?
  Difference between first level and second level cache in hibernate ?
  How to configure second level cache in Hibernate ?
  What are the contents of Hibernate configuration file ( hibernate.cfg.xml ) ?
  Which annotations are used in Hibernate ?
  What things you would care about to improve the performance of Application if its identified that its DB communication that needs to be improved ?
  What are the advantages of Hibernate ?
  What is the purpose of dialect configured in Hibernate configuration file ?
  Please specify in what sequence the objects of following classes will be created ?

Session , SessionFactory, Query , Configuration




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