What is mean by collections in java?
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Can we sort set in java?
How GC (Garbage Collector) knows the objects reference is unused.Whether GC removes the unused object Parmanently or it maintains something.
What is double in java?
What is int short for?
How can we avoid including a header more than once?
Describe different states of a thread.
where the static methods will live ,on stack ? can you explain brefly
how to create multithreaded program? Explain different ways of using thread? : Java thread
Why java is called not pure object oriented language?
Difference between ?System.out.println? and ?System.error.println??
Who is the owner of java?