Tech Mahindra Senior Software Engineer Interview Questions, Process, and Tips

Microservices are a software development technique where applications are composed of small, independent services that communicate over well-defined APIs.

• Microservices break down applications into smaller, loosely coupled services

• Each service is responsible for a specific function and can be developed, deployed, and scaled independently

• Communication between services is typically done through APIs, often using lightweig...read more

Implement list comparator in object class for employees based on salary and name

• Override the compareTo method in the Employee class to compare based on salary and name

• Use Comparator interface to implement custom sorting logic

• Example: Employee class with fields salary and name, compareTo method comparing first by salary then by name

Hash map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values.

• Hash map uses a hash function to determine the index of the key-value pair in the underlying array.

• Collisions can occur when two keys hash to the same index, which can be resolved using techniques like chaining or open addressing.

• Hash maps have constant time complexity O(1) for insertion, deletion...read more

Display list of employees using stream api

• Use Stream API to iterate through the list of employees

• Use forEach() method to display each employee's information

• Example: employees.stream().forEach(employee -> System.out.println(employee));