Java Hibernate Online Test
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The Java Hibernate online test assesses knowledge of programming in Java with the Hibernate library through a series of live coding questions.
The assessment involves solving work sample tasks such as:
- Using HQL to extract entities from the database.
- Adding annotations to define mapping between classes and database tables.
- Writing Java classes and interfaces to produce reusable code.
A good Java developer working with Hibernate needs a solid understanding of the Java programming language and should be familiar with how to use Hibernate for object persistence and how to leverage it to create enterprise grade applications.
Sample public questions
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 public constructor that accepts AlertDAO.
- The raiseAlert and getAlertTime methods should use the object passed through the constructor.
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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69 more premium Java Hibernate questions
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Skills and topics tested
- Java
- Bug Fixing
- Language
- Exceptions
- Arithmetic
- Linked List
- OOP
- Refactoring
- HashMap
- Iteration
- Lists
- Recursion
- Tree
- Regex
- Strings
- Accessibility Levels
- ArrayList
- Class Modifiers
- TDD
- Dynamic Proxy Classes
- Inheritance
- Method Overriding
- Integer Division
- Performance Tuning
- Random
- Generics
- Complexity
- Stack
- Higher Order Function
- Interfaces
- Serialization
- XML
- Stream
- Memory Management
- Multithreading
- Abstract Class
- Java Hibernate
- HQL
- Annotations
- Entity Type
- Insert
- Aggregation
- Test Case Design
- Unit Testing
- Algorithmic Thinking
- Graphs
- Dynamic Programming
- HashSet
- Arrays
- Classes
- Objects
- Queue
- StringBuilder
- Sorting
- Stream API
- Data Structures
- Conditions
- Synchronization
For job roles
- Back-End Developer
- Java Developer
- Web Developer
Sample candidate report
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