Why hashmap is used in java?
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Difference between Linked list and Queue?
how a marker interface gets its functionality and when we implements a marker interface how it got invoked
can we write program without class
Print Vertical traversal of a Binary Tree.
What is the difference between && and & in java?
What does next mean in java?
What is the Concept of Encapsulation in OOPS
How to declare objects of a class ?
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What is the difference between Resultset and Rowset.
Define how does a try statement determine which catch clause should be used to handle an exception?
Write a function for palindrome and factorial and explain?
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In how many ways we can do synchronization in java?