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

Frequently asked in Cognizant ( Based on 2 feedback )
  Q1. What are Inner , Outer , Left and Right Joins in SQL ?Database2017-01-09 13:07:55

Ans. Inner join is the intersection of two tables on the condition defined by the where clause i.e will get records from both tables matched by a column.

Outer join is the union of two tables i.e will get all records from both tables and will put null in the columns where related records are not present.

Left Outer join is the left union of two tables i.e all records from the table on the left and values from the right table for related records else null for the columns from right table.

Right Outer join is the right union of two tables i.e all records from the table on the right and values from the left table for related records else null for the columns from left table.

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   Like      Discuss      Correct / Improve     sql  inner join  outer join  right join  left join     EPAM  Antra  MSCI  HCL Technologies  Cognizant (CTS)  Morgan Stanley  Wipro  Infosys  Accenture  IBM  PayPal  A9.com  Curriculum Associates  Gold Coast IT  Kobie Marketing  Hybris  Aptroid Technologies  E2open  IGATE  SnapDeal  Verilogue  Span Infotech      basic        frequent


 Q2. What are the phases of the JSP life cycle ?Java EE
Admin
info@buggybread.com
Ans. Translation of JSP PageCompilation of JSP PageClassloading (class file is loaded by the classloader)Instantiation (Object of the Generated Servlet is created).Initialization ( jspInit() method is invoked by the container).Reqeust processing ( _jspService() method is invoked by the container).Destroy ( jspDestroy() method is invoked by the container).

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

   Like      Discuss      Correct / Improve     j2ee   servlets   servelets   web application   jsp   jsp life cycle   mindtree     Span Infotech  PTC  Cybage  iNautix Technologies  TechAspect  Brillio  Modus Information Systems  SAG Infotech   TechProcess Payment Services


Frequently asked these days as there are major changes in Java 8.
  Q3. 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


 Q4. Which takes more memory - float or Float ?Core Java
Admin
info@buggybread.com
Ans. float is a native data type whereas Float is a class. A Float object will always take more memory than float variable as there are metadata overheads with the objects.

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

   Like      Discuss      Correct / Improve     java   data type   float     SPAN Infotech  Mindtree  Camerinfolks      basic        frequent




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