What is the difference between hashset and arraylist?
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Tell me real world example of polymorphism and encapsulation .
Why do we need sorting?
Is hashmap an array?
Which is faster array or linked list?
Differentiate between the singly linked list and doubly linked list.
Can we sort hashmap?
What is complete binary tree in data structure?
Sorting is not possible by using which of the following methods? (a) Insertion (b) Selection (c) Exchange (d) Deletion
How is the front of the queue calculated ?
What is the order of selection sort?
How do you empty an arraylist?
write an algorithm to show the procedure of insertion into a b-tree?