Exams Attended

Mock Exams

Make Homepage

Bookmark this page

Subscribe Email Address

Core Java Interview Questions and Answers

Ques 231. What is inner class?

If the methods of the inner class can only be accessed via the instance of the inner class, then it is called inner class.

Is it helpful? Add Comment View Comments
 

Ques 232. What is the use of serializable?

To persist the state of an object into any perminant storage device.

Is it helpful? Add Comment View Comments
 

Ques 233. Why do threads block on I/O?

Threads block on i/o (that is enters the waiting state) so that other threads may execute while the I/O operation is performed.

Is it helpful? Add Comment View Comments
 

Ques 234. What class allows you to read objects directly from a stream?

The ObjectInputStream class supports the reading of objects from input streams.

Is it helpful? Add Comment View Comments
 

Ques 235. What an I/O filter?

An I/O filter is an object that reads from one stream and writes to another, usually altering the data in some way as it is passed from one stream to another.

Is it helpful? Add Comment View Comments
 

Most helpful rated by users:

©2021 WithoutBook