Is it possible to store null key and null values in a hashmap?
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When will we get ArrayStoreException?
Define data type and what are the types of data type?
How can we reverse the order in the treemap?
Explain quick sort?
Which is faster binary or linear search?
What is the use of tree data structure?
How do you get placements?
What is array define its types?
What is the best case complexity of quicksort?
What are the types of queues?
Explain recursive function & what is the data structures used to perform recursion?
Define depth and height of a tree?