Matcon Industrial Engineering Interview Questions and Answers

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Q1. Which version of Java and Spring framework have you worked in ?

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I have worked with Java 8 and Spring Boot 2.4.2.

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Singleton, Abstract and Spring MVC are important concepts in software engineering.

Singleton class is a class that can only have one instance at a time.
Abstract class is a class that cannot be instantiated and is used as a base class for other classes.
Spring MVC is a framework for building web applications in Java.
Spring MVC follows the Model-View-Controller architecture pattern.
Singleton and Abstract classes are used for design patterns while Spring MVC is a web application f...read more

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Dependency Injection is a design pattern used in Spring to inject dependencies into an object.

Dependency Injection is a way to remove hard-coded dependencies between objects.
It allows for loose coupling between objects.
Spring uses Dependency Injection to manage object dependencies.
There are three types of Dependency Injection in Spring: Constructor Injection, Setter Injection, and Field Injection.
Example: @Autowired annotation in Spring is used for Dependency Injection.

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Aspect Oriented Programming (AOP) is a programming paradigm that aims to increase modularity by separating cross-cutting concerns.

AOP allows developers to modularize cross-cutting concerns, such as logging, security, and transaction management.
It achieves this by introducing aspects, which are modules that encapsulate cross-cutting concerns.
Aspects can be applied to multiple classes and methods, reducing code duplication and improving maintainability.
AOP is often used in conj...read more

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JAVA 8 features include lambda expressions, functional interfaces, streams, default methods, and more.

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Promotion refers to the advancement of an employee to a higher position or rank within an organization.

Promotion can be vertical, where an employee is promoted to a higher position within the same department or team.
Promotion can also be horizontal, where an employee is promoted to a different department or team with similar or different responsibilities.
Promotion can be temporary or permanent, depending on the organization's needs and the employee's performance.
Promotion can...read more