Hackerrank test recibido por correo electrónico con duración de 120 minutos. Pude terminarlo en 60 minutos. - Preguntas de ciencias de la computación. - Preguntas sobre encriptación. - Dos consultas SQL. - Preguntas sobre Spring Boot. - 2 algoritmos sencillos.
como resolvera casos de threading, usos de anottations, collections, uso spring, etc
Java questions and streams and architecture
General Java and Angular mid/high level questions. No basic ones
Design pattern Multithreaded Spring Hibernate
What is spring boot microservice, deployment structure of microservice, design patterns, SOLID principle, Producer consumer problem, designing a REST api
core Java,spring,hibernate questions
Can java list have duplicated objects
Most of the questions were related with collections and general logical questions.
1. what is java polymorphism - how java implements polymorphism? 2. purpose of volatile keyword 3. can top level class be declared static? 4. when is object.finalise method, when is it called? 5. Can we syncronise the static method 6. Can we invoke non static method from static method on same class 7. Producer and consumer pattern explain?? 8. Which design pattern u used in ur projects? 9. Describe heirarchy of exception class 10. Java collection api - describe a few? 11. Describe transient variable 12. Describe final keyword 13. Multithreading - how to create multiple thread, describe how to start new thread 14. Difference between runnable and callable 15. Difference between treemap and hashmap? 16. String, string builder and string buffer differences 17. Java io apis which u used -? 18. Singleton pattern - explain 19. How do you make class singleton.
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