What is difference between hashset and hashmap in java?
how to use this key word in java programming?
We can write any Java Logics in our JSP. Then why we are using servlets(Controller Layer) to interact with the DAO ?
Which collection is ordered in java?
string is immutable? right every one knows that, my question is it advantage or disadvantage making string immutable?
why HashTable not allow null key and value
Name four container classes.
What is a container in a gui?
What is tcp and udp?
what is difference between method overloading & method overridding with example?
when we have to use final class in java?
What is the platform?
Why is java called the platform independent programming language?