Can we put null key in hashmap?
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What is the capacity of arraylist?
What is the difference between array and stack?
You want to insert a new item in a binary search tree. How would you do it?
What is the difference between the hash table and hash map?
Describe the merge sort principle and what will be its time complexity?
Is list an array?
What is the application of queue?
In an avl tree, at explain what condition the balancing is to be done?
Can you sort a string?
Explain linear linked implementation of Stack and Queue?
Briefly explain recursive algorithm?
Differentiate between push and pop?