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|Java - Interview Questions and Answers|
|Ans. Optimizing Resource utilization. When you open a file using any programming language , that is actually a request to operating system to access the file. When such a request is made , resources are allocated by the OS. When you gracefully close those files, those resources are set free.|
In Java if you don’t close the streams and files, Garbage collection identifies the open files which have lost the reference and hence will close them.
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|What is a stream and what are the types of Streams and classes of the Streams?|
|What are the contents of Hibernate configuration file ( hibernate.cfg.xml ) ?|
| Which of the following file is called deployment descriptor ?|
|Within AWS S3, Why new files are available immediately for read operation but not the updates ?|
|What is the purpose of dialect configured in Hibernate configuration file ?|
|What are the configuration files in Hibernate ?|
|Can we generate Java Documentation using Export -> JavaDoc using a jar file ?|
|Name few File IO related classes and interfaces ?|
|What are the ways in which an application can maintain config variables ?|
|Tell something about BufferedWriter ? What are flush() and close() used for ?|