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Questions d'entretien pour Java Developer Technology

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11 question(s) d'entretien partagée(s) par les candidats | java developer technology

- Why we use interfaces and abstract classes, what are the differences? - List implementations and differences between ArrayList and LinkedList. When we use them any why? - Type erasure in Java generics. - int type how many bytes in memory? - Some other similar Java core questions. Coding task: a very easy task with HashMaps.
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Java Developer (Technology)

Entretien passé chez Morgan Stanley

3.9★
8 déc. 2022

- Why we use interfaces and abstract classes, what are the differences? - List implementations and differences between ArrayList and LinkedList. When we use them any why? - Type erasure in Java generics. - int type how many bytes in memory? - Some other similar Java core questions. Coding task: a very easy task with HashMaps.

Core Java: ========= 1. Why String is immutable ? 2. How HashMap works internally ? 3. OOPS concepts and Polymorphism with example ? 4. Thread creation, Diff between Sleep and Wait ? 5. Synchronization and Serializable ? 6. Collections which you have used in your project and difference between them ? 7. String pooling concepts and diff between String created with New keyword and Literal ? 8. How many ways an object can be created in Java ? 9. Exceptions handling basic questions. Spring & Hibernate =============== 1. What is IOC and DI ? 2. Annotations which you have used. 3 . Autowiring. 4. Stereotype annotations. 5. Spring JDBC vrs Hibernate. 6. Class to Table mapping using JPA annotations. 7. Hibernate configurations. 8. Different types of Spring container. 9. Spring JPA configurations. 10. Spring Hibernate integration. 11. Spring security worked or not ? If yes how to configure and how it works ? Web Services =========== 1. Different between rest and soap ? 2. Protocol used by REST ? 3. Different HTTP methods supported by REST. 4. Annotations in JAX-RS like produces consumes ? 5. Which implementation of JAX-RS is used like Jersey or Spring With REST ? Extra ==== 1. How to deploy code in WAS or Jboss ? 2. How to configure JOB in jenkins ? 3. What is docker ? 4. Have you worked with AWS or Azure ?
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Technology Analyst (Java III Years Experience)

Entretien passé chez Infosys

3.6★
29 avr. 2019

Core Java: ========= 1. Why String is immutable ? 2. How HashMap works internally ? 3. OOPS concepts and Polymorphism with example ? 4. Thread creation, Diff between Sleep and Wait ? 5. Synchronization and Serializable ? 6. Collections which you have used in your project and difference between them ? 7. String pooling concepts and diff between String created with New keyword and Literal ? 8. How many ways an object can be created in Java ? 9. Exceptions handling basic questions. Spring & Hibernate =============== 1. What is IOC and DI ? 2. Annotations which you have used. 3 . Autowiring. 4. Stereotype annotations. 5. Spring JDBC vrs Hibernate. 6. Class to Table mapping using JPA annotations. 7. Hibernate configurations. 8. Different types of Spring container. 9. Spring JPA configurations. 10. Spring Hibernate integration. 11. Spring security worked or not ? If yes how to configure and how it works ? Web Services =========== 1. Different between rest and soap ? 2. Protocol used by REST ? 3. Different HTTP methods supported by REST. 4. Annotations in JAX-RS like produces consumes ? 5. Which implementation of JAX-RS is used like Jersey or Spring With REST ? Extra ==== 1. How to deploy code in WAS or Jboss ? 2. How to configure JOB in jenkins ? 3. What is docker ? 4. Have you worked with AWS or Azure ?

1) What is static keyword? Can you create a class with only static methods? 2) What is polymorphism? 3) How to measure the angle between two hands of a clock? 4) What is IoC? 5) What is a bean in spring? 6) Scope of a bean in spring? And some general questions like : 1) Describe your final year project. 2) Co-curricular activities. 3) Why go to IT field after B.Tech ECE?
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Associate Developer Java Technology

Entretien passé chez GalaxE.Solutions

3.3★
27 mars 2021

1) What is static keyword? Can you create a class with only static methods? 2) What is polymorphism? 3) How to measure the angle between two hands of a clock? 4) What is IoC? 5) What is a bean in spring? 6) Scope of a bean in spring? And some general questions like : 1) Describe your final year project. 2) Co-curricular activities. 3) Why go to IT field after B.Tech ECE?

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