What's the base class in java from which all classes are derived?
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Can we have more than one package statement in source file ?
how many types of cloning?
What are different types of expressions?
If an object is garbage collected, can it become reachable again?
what are different ways in which a thread can enter the waiting state? : Java thread
Explain the private protected method modifier?
Where to store local variables?
What are E and PI?
What is the difference between the synchronized() & static synchronized()?
What are the main uses of this keyword?
What is a lock or purpose of locks in java?
Can static methods be overridden?