What is difference between concurrenthashmap and hashtable?
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How many times is merge sort called?
What is bubble sort and selection sort?
What is max heapify?
Can we insert null in set?
What are the advantages of modularity?
What is the difference between hashmap and treemap?
How many types of linked list exist?
Define 2-3-4 tree?
Describe the types of data structures?
What do you know about the big-o notation and can you give some examples with respect to different data structures?
What are the types of algorithms?
What method is used to place a value onto the top of a stack?