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

  Q1. What is a Lambda Expression ? What's its use ?Core Java
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Ans. Its an anonymous method without any declaration.

Lambda Expression are useful to write shorthand Code and hence saves the effort of writing lengthy Code.

It promotes Developer productivity, Better Readable and Reliable code.

  Sample Code for lambda

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   Like      Discuss      Correct / Improve     java   java8   lambda expression   architecture     Axxess  CACI  ZonOff  Dell India  Wellington Management  N26  Lithium Technologies  DST Systems  Overstock  Sofi  JP Morgan  HCL Technologies  Infosys  Wipro  Accenture  Accenture India  Eurofins  Yodlee  AvenData GmbH  Sapient Global Markets  Walmart  Ebay  Goldman Sachs  Foundation Software  HSBC Holdings  Wells Fargo  Marlabs  ZooPlus  Elastic Path  CardConnect  WealthFront  WorldAware  SpredFast  Mobileum  eGym  EnelX  Kroger  GFT Technoligies  Tyro Payments  Mindtree  KocharTech  Bharti Airtel  Tech Mahindra  Patni Computers  L&T Infotech  Mphasis  Mindtree  Hexaware  Collabera  3i Infotech  IGate  Kpit Technologies  NIIT Technologies  Trianz  Persistent Systems  IT Asset  1-800 contacts      expert        frequent

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Very frequently asked. Favorite question in Walk in Drive of many Indian service companies.
  Q2. 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  Accenture India  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

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Frequently asked in CTS ( Based on 2 feedback )
  Q3. What is the difference between comparable and comparator in java.util pkg?Core Java
Admin
info@buggybread.com
Ans. Comparable interface is used for single sequence sorting i.e.sorting the objects based on single data member where as comparator interface is used to sort the object based on multiple data members.

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

   Like      Discuss      Correct / Improve     java   java.util   comparable   comparator   collections     Verilogue  Accenture  Accenture India  Varian Medical Systems  L&T Infotech  Oracle  eIntern  Happiest Minds Technologies  HCL Technologies  Cognizant (CTS)  Cerner  Coviam  EdgeVerve Systems  Virtusa Polaris  Trimax IT Infrastructure & Services  Xpanxion  Appy Pie  WealthFront  Varian Medical Systems  Bristlecone  Verilogue  Guavus  eClinicalWorks      basic        frequent


Frequently asked these days as there are major changes in Java 8.
  Q4. What are new features introduced with Java 8 ?Core Java
Admin
info@buggybread.com
Ans. Lambda Expressions , Interface Default and Static Methods , Method Reference , Parameters Name , Optional , Streams, Concurrency.

  Sample Code for Lambda

  Sample Code for interface default

  Sample Code for Optional

  Sample Code for Streams

  Sample Code for java.time

  Sample Code for Predicate

  Sample Code for Consumer

  Sample Code for MapMerge

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

   Like      Discuss      Correct / Improve     java   java8   technical lead   technical architect     Kayak.com  Luxoft  Overstock.com  Span Infotech  Wealthfront  EMC  L&T Infotech  Vistana  Luxoft  GoodData  DreamWorks Animation  Cognizant (CTS)  Overstock   Nucleus      expert        frequent




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