What is the main difference between java platform and other platforms?
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What is nested loop? What is dangling else condition in it?
What is a default package ?
What is concurrent hashmap and its features?
how you will prevent inheritance is there any other way other than inheritance?
Explain the difference between abstraction and encapsulation.
which one is performance wise advantageious from List,Set,Map?
Which package is always imported by default?
In a container there are 5 components. I want to display the all the components names, how will you do that one?
Why do we need singleton?
What is a hashmap used for?
What are the operands of instanceof operator?
what is the difference between yielding and sleeping? : Java thread