What are internal and external variables?
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How does arrays sort work in java?
Does java return by reference?
How do you convert an int to a double in java?
What is class forname?
Can you instantiate the math class in Java?
What is treeset in java?
What is type inference in java8?
Explain numeric promotion?
Why are the methods of the math class static?
Do you know thread pools?
can we overload main method?
Using callable statement how can you pass out parameters, explain with example?