How do you decide when to use arraylist and linkedlist?
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What initialize variables?
How concurrent hashmap works?
Suppose there is an Online shopping cart application having different objects like Cart, SelectionItem, Billing, COnfiguration, Authentication, Authorization, PersonalDetails etc. Out of this which one can be made a singleton pattern and why?
what is difference between Interface and abstract class
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Which collection does not allow duplicates in java?
Explain listiterator and methods in listiterator?
What is sizeof in java?
how can you take care of mutual exclusion using java threads? : Java thread
whats is the use of final,in which situation final can be used in the application?
Which are the two subclasses under exception class?
Why do we create public static method in java?