Refresh Your Java - Before Java Interview
We are Agile, believe in less Documentation - Only Quick notes (Java Interview Questions) of Java/J2ee Read more....
final – constant declaration.
public static final String HOST_NAME = "yourhost":
finally
– The finally block always executes when the
try block exits, except System.exit(0) call.
This
ensures that the finally block is executed even if an unexpected
exception occurs. But finally is useful for more than just
exception handling —
it allows the programmer
to avoid having cleanup code accidentally bypassed by a return,
continue, or break. Putting cleanup code in a finally
block is always a good practice, even when no exceptions are
anticipated.
try {
} finally {
out.close();
conn.close();
}
finalize()
– method helps in garbage collection. A method that is
invoked before an object is discarded by the garbage
collector,
allowing it to clean up its state. Should not
be used to release non-memory resources like file handles,
sockets,
database connections etc because Java has only
a finite number of these resources and you do not know when the
garbage collection
is going to kick in to release these
non-memory resources through the finalize() method.
This Portal is intended to put all Java/J2ee related topics at one single place for quick referance, not only Technical , but also the Project Management Related thing such as Development Process methodoogies build process, unit testing etc.,
This Portal has More than 500 Java Interview Questions (also could be Considered as Quick Notes) very neatly separated topic by topic with simple diagrams which makes you easily understandable. Importantly these are from our Realtime expericance.