Java Consultant Interview Questions and Answers

A Spring Boot application bootstraps by creating an embedded server and initializing the application context.

• Spring Boot uses embedded servers like Tomcat, Jetty, or Undertow to run the application.

• The application context is initialized by scanning for components, configurations, and auto-configurations.

• Spring Boot auto-configures many features based on dependencies and properties in the application.

OOPs concepts refer to the principles of Object-Oriented Programming that help in designing and implementing software systems.

• Encapsulation - bundling of data and methods that operate on that data

• Inheritance - ability of a class to inherit properties and methods from its parent class

• Polymorphism - ability of objects to take on multiple forms

• Abstraction - hiding of complex implementation details from the user