What is the difference between double and float variables in java?
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What is a package in java? List down various advantages of packages.
Why do we need public static void main(String args[]) method in Java...?
give an example for encapsulation?
explain about casting of objects?
I have an HashMap object, which has with key and value pair. It has 10 keys and values in that object. Now the question is I want insert new key and value in middle or any where in that list but not at the end or at the top. Is it possible or not. If yes how can we achieve this one?
Can private class be extended java?
Why are lists ordered in java?
What is the abstract class?
Explain the difference between getAppletInfo and getParameterInfo?
What are instance variables?
what is auto boxing
What do you understand by weak reference?