What is default size of hashmap?
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Is binary tree a binary search tree?
Can arraylist contain null?
Why do we use trees in data structures?
Explain what are the major data structures used in the rdbms?
Can you change size of array once created?
Why might quick sort might be better than merge sort?
What is the similarity between a Structure, Union and enumeration?
What happens when arraylist is full?
Which sorting has less time complexity?
Define collision in hashing?
Write a program to reverse a link list.
Which time complexity is best?