Why arraylist is not efficient for manipulation?
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Is hashmap synchronized?
Which collection type is used to maintain uniqueness of data structure?
Define hash table?
What is a sorting algorithm in data structure?
Define balance factor of a node in avl tree?
Does arraylist have a tostring?
What is a Queue? Explain its operation with example?
What is an recursive algorithm?
What are the drawbacks of array implementation of queue?
Which interfaces are implemented by printerstatereasons?
Are linked lists useful?
Does treemap preserve order?