Is hashset synchronized?
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How would you swap the Kth node from beginning with Kth node from end in a Linked List.
What is the difference between hashmap and treemap?
Does linked list allow null values?
What is the order of selection sort?
What is tree and its properties?
Differentiate stack from array?
Define a Deque?
Explain the common uses of tree database.
how to insert a new node in linked list where free node will be available?
What is the difference between arraylist and hashmap?
How many types of sorting algorithms are there?
What is binary tree?