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Interview Questions and Answers for 'GuideWire' - 4 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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   Like      Discuss      Correct / Improve     java   string comparison   string   object class   ==    equals   object equality     Ebay  Cerner  GuideWire  Expeditors Associate  Revature  SAIC  ValueLabs  Realty Redefined  Bank Of America  Capgemini  HCL Technologies  Goldman Sachs  Symmetric Corp  Backstop Solutions  Frontier  IQOR   Science  Vanguard  eClinicalWorks  Experticity  Blue Cross and Blue Shield of Kansas  ComTrade  Banja Luka  Overstock.com  Intrasoft International  IBM  Apex Systems  infoview technologies  Ebix  Cumulus Systems  Nakisa  United HealthGroup (UHG)  Sopra Steria  TrueCaller  Mphasis      basic        frequent

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 Q2. What are different ways to create String Object? Explain.Core Java
Admin
info@buggybread.com
Ans. When we create a String using double quotes, JVM looks in the String pool to find if any other String is stored with same value. If found, it just returns the reference to that String object else it creates a new String object with given value and stores it in the String pool.

When we use new operator, JVM creates the String object but dont store it into the String Pool. We can use intern() method to store the String object into String pool or return the reference if there is already a String with equal value present in the pool.

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   Like      Discuss      Correct / Improve     java   string class   string   jvm   memory management   string pool     GuideWire  NTT Data  Fractal Analytics  Accolite      basic        frequent

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  Q3. What is a String Pool ?Core Java
Anonymous
Ans. String pool (String intern pool) is a special storage area in Java heap. When a string is created and if the string already exists in the pool, the reference of the existing string will be returned, instead of creating a new object and returning its reference.

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   Like      Discuss      Correct / Improve     java   oops   string   string class   string pool   heap memory     SAS Institute  Ariba  GuideWire  Harbinger  Oracle  Virtusa  Knoa  Polaris  GuideWire  HCL Technologies  Tata Consultancy (TCS)  Infosys  Technologent  MphasiS  Harbinger Group  Kony  Evergent  NTT Data  VMware  Markit  Ariba  Tech Mahindra  Bureau Veritas  InfoStretch  PTC Software  Mindtree  Centre for Internet and Society (CIS)  Trimax IT Infrastructure & Services      intermediate        frequent

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 Q4. Implement a sparse matrix Java class with a constructor, set and get method. 2018-02-08 13:17:27

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


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   Like      Discuss      Correct / Improve          GuideWire




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