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

Very frequently asked. Among first few questions in almost all interviews. Among Top 5 frequently asked questions. Frequently asked in Indian service companies (HCL,TCS,Infosys,Capgemini etc based on multiple feedback )
  Q1. Difference between == and .equals() ?Core Java
Anonymous
Ans. "equals" is the method of object class which is supposed to be overridden to check object equality, whereas "==" operator evaluate to see if the object handlers on the left and right are pointing to the same object in memory.

x.equals(y) means the references x and y are holding objects that are equal. x==y means that the references x and y have same object.

Sample code:

String x = new String("str");
String y = new String("str");

System.out.println(x == y); // prints false
System.out.println(x.equals(y)); // prints true

  Sample Code for equals

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Content  GS Lab  Thermax  Saama Technologies  Fresherworld.com  Nityo Infotech  Sanofi  Innoplexus  Sears IT & Management Services   National Stock Exchange of India  Accelya Kale  Tudip Technologies  ITSource Technologies  Sela Technology Solutions  Eternus Solutions  Raja Software Labs  Leo TechnoSoft  Shubham Housing Development Finance  Serene Corporation  Leo Technosoft  Questionpro  Sparken IT Solutions  Capsilon  JetSynthesys  MangoSpring  Subway  Arezzo Sky  Lenco Diagnostic Laboratories  Finlogic Technologies  Maxxton  Cerillion  Applus+  XOYAL  Acloudzyn Technologies  ITYX  Tej IT Solutions  Transworld Compressor Technologies  Deskera  Ebaotech  Kahuna Systems  Kimaya Infotech  SSP Technology  Boston Byte  Bonellisoft  Rack Infotech  Intellection Software and Technologies  OMVSAB IT Solutions  ProductDossier  Soft Infology  Systems Plus Transformations  StackMint  HeadInfotech India  EffortSys  KasNet Technologies  Java City  iSynergy TechSys  Unisoft Technologies  Servient  ThinkQuotient Software  Medline Industries  Ascent Cyber Solutions  Proto-T Solutions  Tinker Technologies  Censhare  Proto-T Solutions  Henx International Technologies  AlightHub Consulting Services  Perpetual Infotech  BestoSys  Infiniti Infosystems  Torqus  Spectrum Tech System  OreInfo  Sanvi Softech  Neptune Solutions  XTime  Web Hub Technology  Coin Technologies  Paramount Pictures  Rocklike DMS  Implant Technosoft Solutions  Nabla Infotech  Predikly  Godwit Technologies  Kanaka Consulting  Aarnum Technologies  Ganesh Kapure  Abhinav Digicompsoft Services  Shoffex.com  Online Training Solutions  A Plus Tree  OMM Software Innovation  Tanish Infotech Solution  Zinist Software  Mobile Sutra  Playpixel Infosystem  SunGuard  Nihilent  Siemens PLM Software  Maxgen Technologies  Nitor Infotech  Mediaocean  Yagna iQ  Sigma Systems  Ethon  The Permanente Medical Group  Reliance Industries  MindCraft Software  ABM Knowledgeware  Trutech Web Solutions  Nikhil R Gupta & Associates  eMeasurematics  NovelERP Solutions  Web Element Solutions  HDFC Bank  Qualcomm  Intellect Design Arena  Diebold Nixdorf  Sharekhan  Pepperfry  IRIS Business Services  Wind World  ZEDO  Loylty Rewardz Mngt  C2L Biz  Chenoa Information Services  Insolutions Global  Vakrangee Softwares  Celusion Technologies  Currencies Direct  Zenith System Solutions  Base Information Management  Exponentia DataLabs  Realty Redefined  Constaccent  Neoquant Solutions  Aureus Analytics  Planfirma Technologies  Pawaa Software  iBhejo  Fairfax County Virginia  American Conservation Experience  Hari Krishna Exports  Core Education & Technologies   Nishat Mills  Industrial Market Place  Krisnela Technologies  Swissclear Global  Samyak Software  Professional Access  Nexstep Infotech  Concerto Software  Viral Technologies  Silverwing Technologies  Gcom Software Inc  Accel Frontline  Atom Technologies  Blue Star Infotech  Cynapse  Datamatics Global Services  Flytxt Mobile Solutions  Persistent Systems  Onmobile Global  Trianz  Sasken  WNS Global Services  Tavant technology  Edz Infomatics      basic        frequent

Try 6 Question(s) Test


  Q2. What is a Lambda Expression ? What's its use ?Core Java
Admin
info@buggybread.com
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

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


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Frequently asked question in companies using Hibernate.
  Q3. What is Lazy Initialization in Hibernate ?Hibernate
Admin
info@buggybread.com
Ans. It's a feature to lazily initialize dependencies , relationship and associations from the Database. Any related references marked as @OneToMany or @ManyToMany are loaded lazily i.e when they are accessed and not when the parent is loaded.

  Sample Code for Lazy Initialization

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


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Try 2 Question(s) Test


Basic and Very Frequently asked.
  Q4. What is Polymorphism in Java ?Core Java2016-11-06 09:10:54

Ans. Polymorphism means the condition of occurring in several different forms.

Polymorphism in Java is achieved in two manners

1. Static polymorphism is the polymorphic resolution identified at compile time and is achieved through function overloading whereas

2. Dynamic polymorphism is the polymorphic resolution identified at runtime and is achieved through method overriding.

  Sample Code for overloading

  Sample Code for overriding

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  Q5. What are the core OOPs concepts ?Core Java2017-02-06 16:15:55

Ans. Abstraction, Encapsulation, Polymorphism , Composition and Inheritance

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

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