How is treeset implemented in java?
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what is meant by UP& DOWN casting in java?
Can arraylist contain null values?
Can a class be a super class and a sub-class at the same time? Give example.
What is super keyword in java ?
What are the differences between heap and stack memory?
why we use merge option in hybernate pls give a ex snippet
Explain the difference between call by refrence and call by value?
system.out.println(1 + 3);
What is style and indentation?
What is type casting?
What is the difference between Checked and Unchecked exception? Give some examples
What is string [] args?