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Interview Questions and Answers - Order By Newest

   
  Q31. What are the core OOPs concepts ?Core Java
Ans. Abstraction, Encapsulation, Polymorphism , Composition and Inheritance

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   Like         Discuss         Correct / Improve     core oops concepts     Asked in 65 Companies      basic        frequent


 Q32. Explain OOPS.Core Java
 This question was recently asked at 'Acute Informatics,General Atomics'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 2 Companies


 Q33. Can you write the code for implementing the one to many (student -> courses) relationship in hibernate?Hibernate
Ans. @OneToMany(cascade = CascadeType.ALL)
@JoinColumn(name = "student_id")
private Set countries;

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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q34. Can you explain software design principles cohesion and coupling with an example?Design
 This question was recently asked at 'Fidelity Information Services (FIS)'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     cohesion  coupling     Asked in 1 Companies        frequent


 Q35. Describe SQL JoinsDatabase
Ans. Oracle having following types of joins these are also called 8i joins. There are:

1. Equi (or) Inner join
2. Non Equi join
3.Self join
4.Outer join

Oracle also support the 9i (or) ANSI standard joins.There are:

1.Inner join
2.Left outer join
3.Right outer join
4.Full outer join
5.Natural join

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   Like         Discuss         Correct / Improve     sql joins  sql     Asked in 2 Companies


 Q36. Is java fully platform independent ?Core Java
Ans. yes, Java is a class-based and object-oriented programming language. It is a platform-independent language i.e. the compiled code can be run on any java supporting platform. It runs on the logic of “Write once, run anywhere”.

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 Q37. Which s/w is used for adhar card verification for amount transfer?
Ans. The Aadhaar enabled Payment System or AePS

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 Q38. Pascal Triangle Program
Ans. package snippet;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Pascal {
   public static void main(String[] args) {

      System.out.println(generatePascalTriangle(5));

   }

   static Map> generatePascalTriangle(int size) {
      Map> triangle = new HashMap<>();

      triangle.put(0, Arrays.asList(1));
      triangle.put(1, Arrays.asList(1, 1));

      for (int i = 2; i <= size; i ) {
         List coeffListForI = new ArrayList<>();
         List coeffListForI_1 = triangle.get(i - 1);
         coeffListForI.add(1);
         for (int j = 0; j <= coeffListForI_1.size() - 2; j ) {
            coeffListForI.add(coeffListForI_1.get(j) coeffListForI_1.get(j 1));
         }
         coeffListForI.add(1);
         triangle.put(i, coeffListForI);
      }

      return triangle;
   }
}

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   Like         Discuss         Correct / Improve          Asked in 8 Companies


 Q39. What is cluster ?
 This question was recently asked at 'idealake information technologies'.This question is still unanswered. Can you please provide an answer.


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 Q40. Differentiate osi and tcp/ip models and describe themNetworking
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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 Q41. what are system callsOperating System
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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 Q42. What is size of structure in c ?C++
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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 Q43. What are reference variables in cC++
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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 Q44. Explain memory allocation and deallocation.C++
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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