Which is the best site for Java interview questions?

Which is the best site for Java interview questions?

Following is the list of most popular websites.

• Tutorialspoint. www.Tutorialspoint.com.
• StackOverflow. www.stackoverflow.com.
• DZone. www.dzone.com.
• Wikipedia. www.wikipedia.org.
• IBM Developer Works. www.ibm.com/developerworks/java/

What are the Hibernate interview questions?

Hibernate Interview Questions For Freshers

• What is ORM in Hibernate?
• What are the advantages of Hibernate over JDBC?
• What are some of the important interfaces of Hibernate framework?
• What is a Session in Hibernate?
• What is a SessionFactory?
• What do you think about the statement – “session being a thread-safe object”?

What is Autowiring in spring interview questions?

The @Autowired annotation provides more accurate control over where and how autowiring should be done. This annotation is used to autowire bean on the setter methods, constructor, a property or methods with arbitrary names or multiple arguments. By default, it is a type driven injection.

Is Java Spring still used?

Yes, Java Spring is still relevant and popular in the development of highly secure, robust, scalable web application. But, with the continuous popularity in the JavaScript from past few years, it will be interesting to see whether the MEAN Stack and other emerging JavaScript framework like Node.

Is hibernate thread safe?

Hibernate sessions are not thread-safe. Not only does this mean you shouldn’t pass a Hibernate session into a new thread, it also means that because objects you load from a session can be called from (and call back to) their owning session, you must not share Hibernate-managed objects between threads.

What is Threadsafe in hibernate framework in Java?

Originally Answered: How do I make hibernate session thread safe? SessionFactory is Hibernates concept of a single datastore and is threadsafe so that many threads can access it concurrently and request for sessions and immutable cache of compiled mappings for a single database.

How does Spring achieve DI or IoC?

Spring implements DI by either an XML configuration file or annotations. Dependency injection is a pattern through which IoC is implemented and the act of connecting objects with other objects or injecting objects into objects is done by container rather than by the object themselves.

What is Spring JDBC?

Spring JdbcTemplate is a powerful mechanism to connect to the database and execute SQL queries. It internally uses JDBC api, but eliminates a lot of problems of JDBC API.

How Hibernate interview questions can help in cracking interview?

It’s used a lot in enterprise applications for database operations. So I decided to write a post about hibernate interview questions to brush up your knowledge before the interview. Whether you are fresher or experienced, having good knowledge or Hibernate ORM tool helps in cracking interview.

What are the most asked collections interview questions in Java?

In Java, collection interview questions are most asked by the interviewers. Here is the list of the most asked collections interview questions with answers. 1) What is the Collection framework in Java? Collection Framework is a combination of classes and interface, which is used to store and manipulate the data in the form of objects.

What is Hibernate framework in Java?

Hibernate is a Java-based persistence framework and an object-relational mapping (ORM) framework that basically allows a developer to map POJO – plain old Java objects – to relational database tables. The aim of hibernate framework is to free the developer from the common data persistence-related complex configurations and tasks.

What is the use of callback interface in hibernate?

Callback interfaces of hibernate are useful in receiving event notifications from objects. For example, when an object is loaded or deleted, an event is generated and notification is sent using callback interfaces. 21. When an instance goes in detached state in hibernate?