What are use cases?
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how session will be expired?
What do you mean by scope of variable?
If a class is declared without any access modifiers, where can the class be accessed?
Catch(Exception e){ } in that what is Exception and purpose of that in that place exactly?
I want to persist data of objects for later use. What is the best approach to do so?
Is there a case when finally will not execute?
what is hashmap& hashtable with example?
What is your platform?s default character encoding and how to know this?
What is the difference between interpreter and compiling ?
What is http client in java?
What is a ternary operator in java? What is an interface?
Difference between concurrent hashmap and hashtable and collections