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Java and Hibernate Online Test

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The Java and Hibernate online test assesses candidates' knowledge of Java and the Hibernate library.

It's ideal for pre-employment screening. A good Java and Hibernate developer should be familiar with how to use Hibernate for object persistence and to leverage it to create enterprise grade applications.

This online test requires candidates to solve live coding problems using Java and Hibernate.

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Free Sample Questions for Java and Hibernate Test

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Alert Service

10min
  -  
Easy  
  -  
CODE

Java Interfaces Inversion of control Refactoring Public

Refactor the AlertService and MapAlertDAO classes:

  • Create a new package-private interface, named AlertDAO, that contains the same methods as MapAlertDAO.
  • MapAlertDAO should implement the AlertDAO interface.
  • AlertService should have a constructor that accepts AlertDAO.
  • The raiseAlert and getAlertTime methods should use the object passed through the constructor.

Merge Names

10min
  -  
Easy  
  -  
CODE

Java Arrays Public

Implement the uniqueNames method. When passed two arrays of names, it will return an array containing the names that appear in either or both arrays. The returned array should have no duplicates.

For example, calling MergeNames.uniqueNames(new String[]{'Ava', 'Emma', 'Olivia'}, new String[]{'Olivia', 'Sophia', 'Emma'}) should return an array containing Ava, Emma, Olivia, and Sophia in any order.

Pet DAO

10min
  -  
Easy 
  -  
CODE

Java Hibernate HQL Public New

The PetDAO class is used for various database operations on the Pet entity.

Finish the findNamedPetsBySpecies method so that it returns all pets of the appropriate species. The method should not return any Pets whose name field is null. The method accepts a Hibernate Session object that it should use to make the query.

For example, if the Pets table contains:

id  name   species
--------------------
0   Lady   Dog
1   Max    Cat
2   null   Camel

calling findNamedPetsBySpecies with "Cat" as the species, should return a list that contains a pet named "Max" with the id 1.

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Premium Questions for Java and Hibernate Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

Java Bug fixing Language Stream Strings Exceptions Arithmetic Algorithmic thinking Arrays Sorting Memory management Linked list Integer division Regex OOP Refactoring Queue HashMap Iteration Lists Tree Serialization XML Recursion Data structures Accessibility levels Multithreading Synchronization StringBuilder ArrayList Complexity Stack Stream API Class modifiers Inheritance Graphs Test case design Unit testing Dynamic programming Higher order function Interfaces HashSet TDD Java Hibernate Transactions Aggregation Group by HQL Annotations Entity Type Dynamic Proxy Classes Random Method overriding
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