Which of the collections allows null as the key?
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Why entry interface is used in map?
What is tree and its properties?
What is the difference between classifying and sorting?
Explain heapsort. What is its complexity?
Two linked lists are given, find out the sum of them without altering the linked list?
What are the differences between b tree and b+ tree?
How many sorting are there in data structure?
How can avl tree be useful in all the operations as compared to binary search tree?
What type of algorithm is binary search?
How do you empty an arraylist?
Why are b trees used?
What are doubly linked lists?