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Interview Questions and Answers for 'Tavant technology' - 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  operator     Asked in 289 Companies      basic        frequent

Try 6 Question(s) Test


 Q2. Explain when you would decide to use open authentication ?Authentication2019-02-02 17:22:28

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


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   Like         Discuss         Correct / Improve     open authentication     Asked in 1 Companies


 Q3. Why Hadoop serialized data types are not using in Spark serialization ?BigData2019-02-02 17:23:30

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


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q4. Does abstract class have public constructor? Core Java2019-02-02 17:27:21

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


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   Like         Discuss         Correct / Improve     abstract class  public constructor     Asked in 1 Companies




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