What is an object’s lock and which object’s have locks?
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How do you format in java?
Explain the polymorphism principle?
What is the purpose of garbage collection in java, and when is it used?
What is the argument in java?
What is the difference between yield() and sleep()?
Why is singleton not thread safe?
is memory to the abstract class allocated ..or objects not instantiated
how tha garbage collector know that the object will be deleted? on which algorithm the garbage collector works? what is the working principle of garbage collector? How manay types of garbage collectors r there?
what do you mean by java annotations?
What is java in detail?
What is a copy constructor in java?
What is lazy programming?