Ashay interviews Priya for a technical position and asks her questions about Java. Priya explains that garbage collection removes unused objects from memory to free up space. She also notes that the finalize() method is used to release non-Java resources like connections before an object is deleted, as the garbage collector calls finalize() just before removal. Ashay adds that finalize() must be overridden to define cleanup actions, otherwise the default Object implementation does nothing.

1. EP. 4
Java interview
By Ashay Nayak

2. Hi Priya! I am Ashay.
I am going to take
your technical round.
Hey Ashay! Thanks
for giving me this
oppportunity.
By Ashay Nayak

3. I am going to ask
few Java Questions.
okay.
By Ashay Nayak

4. What is garbage
collection in Java?
If any object is no longer in use
then we should remove that
object from heap memory. The
process of removing unused
objects from heap memory is
known as Garbage collection.
By Ashay Nayak

5. hmm...
Why do we use
finalize () method in
Java?
Sometimes object contains non-
java resources like connection
details and we want that object to
release those resources before
getting deleted. Thus, garbage
collector calls finalize() method just
before deleting the object where all
resources get released.
By Ashay Nayak

6. By Ashay Nayak
finalize() method present in Object class doesn’t
contain any implementation. So there is a need to
override the finalize() method to define the actions
which we want to do before object deletion.
Let’s say we have created a Test class. We will
override finalize() method inside it. Now when any
object of the Test class becomes eligible for
garbage collection, this override method will be
called. If you don’t override then the default
implementation of finalize() method present in the
Object class will be called and nothing will happen
as it doesn’t contain any implementation.
Knowledge for You

7. To Be Continued...
By Ashay Nayak