Which is the parent class of hashmap class?
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Is null allowed in list?
What is collections singletonlist?
What does arrays tostring do?
We know that Arrays are objects so why cannot we write strArray.length()?
What is b tree in data structure?
What is bubble sort used for?
Define b-tree of order m?
What is hashing with example?
Why do we use stacks?
Is hashmap an object?
What are splay trees?
What is max heapify?