Technical Content Developer Interview Questions and Answers

HashMap is a data structure that stores key-value pairs, allowing for efficient data retrieval and manipulation.

• Fast access: HashMap provides average O(1) time complexity for get() and put() operations.

• Dynamic sizing: It automatically resizes when the load factor exceeds a threshold, optimizing memory usage.

• Key uniqueness: Each key in a HashMap is unique, preventing duplicate entries.

• Null values: HashMap allows one null key and multiple null values, offering flexibility in da...read more

A queue is a linear data structure that follows the First In First Out (FIFO) principle for managing data.

• Types of queues include: Simple Queue, Circular Queue, Priority Queue, and Double-ended Queue (Deque).

• A Simple Queue allows insertion at the rear and deletion from the front.

• A Circular Queue connects the end of the queue back to the front, optimizing space usage.

• A Priority Queue processes elements based on priority rather than order of insertion.

• A Deque allows insertion a...read more