Can a class have multiple subclasses?
What is jvm? How its run?
What are scalar data types?
Is it safe for adding 10,00,000 records/objects to HashMap?, i.e is it safe to add millions of objects to HashMap?
What is scanner in java?
What does pointer mean?
string is immutable? right every one knows that, my question is it advantage or disadvantage making string immutable?
why java does not have operator overloading?
what is request dispatcher and how does it work?
What are event-delegation model and event-inheritance model? Which is best?
Is space a character in java?
What are the benefits of operations?
Is zero a natural number?