Can you store different types in an array?
How are the elements of a 2d array are stored in the memory?
Explain the uses of b+ tree.
Can we add duplicate keys in a hashmap?
Differentiate between list and set.
What is an array vs list?
Is an arraylist an object?
When would you use a tuple?
What data structure would you mostly likely see in a non recursive implementation of a recursive algorithm?
Where the data structures are used?
Describe the types of data structures?
Why might quick sort might be better than merge sort?
Does treemap allow null values?