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Interview Questions and Answers for 'Associations' - 6 question(s) found - Order By Newest

 Q1. Which of the following syntax is correct ?import static java.lang.System.*;or static import java.lang.System.*;Core Java
Ans. import static java.lang.System.*;

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   Like         Discuss         Correct / Improve     java   static import   generics   import   OCJP   SCJP   Oracle certified java developer     Asked in 1 Companies


Very frequently asked Hibernate interview question. Frequently asked in TCS ( based on 2 feedback )
  Q2. What are different types of associations in Hibernate ?Hibernate
Ans. There are 4 types of associations in Hibernate

One to One
One to Many
Many to One
Many to Many

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   Like         Discuss         Correct / Improve     hibernate   associations     Asked in 11 Companies        frequent


 Q3. What is cascade ?Hibernate
Ans. Instead of Saving Parent as well as Child Entities individually , Hibernate provides the option to persist / delete the related entities when the Parent is persisted.

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   Like         Discuss         Correct / Improve     hibernate   cascade   hibernate relationship   hibernate associations


 Q4. Which type of associated Entities are Eagerly loaded by Default ?Hibernate
Ans. OneToOne

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   Like         Discuss         Correct / Improve     hibernate   hibernate associations   hibernate relationship


 Q5. How are the concept of Association related to Composition and Inheritance ?Core Java
Ans. Composition and Inheritance are the different types of Associations for Classes.

Composition is a has-a association between classes.
Inheritance is a is-a association between classes.

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   Like         Discuss         Correct / Improve     composition  object oriented programming (oops)  oops concepts  inheritance  object oriented programming (oops)  oops concepts  association  relationship between objects


 Q6. Explain different inheritance mapping strategies with JPA / Hibernate.Hibernate
Ans. table per hierarchy
table per concrete class
table per sub class

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   Like         Discuss         Correct / Improve     hibernate mapping  hibernate associations     Asked in 4 Companies



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