Which sorting algorithm has minimum number of swaps?
What is data structure explain different types of data structures with examples?
If you have to store one lakh objects, what will be a better option- a hash map or an array list?
What are the basic operations of stack?
Can arraylist contain null?
Can we create a null as a key for a map collection?
Which is faster hashmap or hashtable?
What is push and pop in stack?
Are lists mutable?
Calculate the address of a random element present in a 2d array, given base address as ba.
Define internal nodes?
What do you mean by free pool?
Explain merge sort algorithms.