What is fail first in java?
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When do we use hashset over treeset?
What do you mean by synchronized non access modifier?
what is heap memory?
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Difference between default and protected access specifiers?
What is tree node in java?
What is an empirical question?
What is the maximum size of array in java?
What is the difference between length and size in java?
Explain role of constructor in a java application?
What does index mean in java?
what is the use of servlet engine?
I have a class which is abstract which contains only the abstract methods. This is similar to an interface. Then, if i have given a choice to choose one of them. Which one i have to choose and why?