What is the difference between arraylist and hashmap?
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How does hashset work internally in java?
Define adjacent nodes?
Is map a data structure?
example of linear and non-linear data structures?
If you are given a choice to use either arraylist and linkedlist, which one would you use and why?
Give a real time example of stack
What is stack in data structure with the example?
What is binary tree?
What is the purpose of sorting?
What are the drawbacks of array implementation of queue?
How does variable declaration affect memory allocation?
Compare Queue and Topic ?