If we add enum constants to a sorted collection ( treemap , treeset ), what will be the order in which they will be maintained?
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Define the queue data structure.
Define heap?
Why is sorting necessary?
Can hashmap have duplicate keys?
What is the purpose of thread?
Will hashmap allow null keys?
What is time complexity of sorting algorithms?
What do you mean by recursive definition?
What is difference between array and arraylist? When will you use array over arraylist?
Define b-tree of order m?
What is the Role of push() and pop() method?
What is the default capacity of hashmap?