Does arraylist have index?
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Explain linked list in short.
Explain implementation of traversal of a binary tree.
Why is quicksort better than mergesort?
Have you ever used HashTable and Directory?
What are the advantages of sorting and filtering data?
Which is the parent class of printerstatereasons class?
Discuss how to implement queue using stack.
Explain the priority queue?
What is rule regarding overriding equals and hascode method?
What is the non linear data structure?
Differentiate between hashmap and hashtable.
Does hashmap allow duplicate keys?