what is meant by abstract class?
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What are the types of casting?
Is array a class in java?
When you say String is immutable, what do you mean by that? Say I have String s = "Ness" s= s+"Technologies"; What will happen? If the value gets appended, then what is the meaning of immutable here?
Does java support multiple inheritance or not?
What is the size of arraylist in java?
Catch(Exception e){ } in that what is Exception and purpose of that in that place exactly?
What is meant by nested loop?
How two different class threads communicate with each other?. send example code.
In java, how we can disallow serialization of variables?
Why are arrays useful in java?
If two threads have same priority which thread will be executed first ?
Can a main method be overloaded?