Pragiti Internet Technologies
Pragiti Internet Technologies Interview Questions and Answers
Q1. Which version of Java and Spring framework have you worked in ?
I have worked with Java 8 and Spring Boot 2.4.2.
I have experience in developing RESTful APIs using Spring Boot 2.4.2.
I have worked with Spring Data JPA for database operations.
I have used Spring Security for authentication and authorization.
I have also worked with Java 8 features such as streams and lambdas.
Q2. What are Singleton Class, Abstract Class and Spring MVC architecture ?
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
Q3. What is Dependency Injection is Spring ?
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.
Q4. what is Aspect Oriented Programming ?
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
Q5. What are the features of JAVA 8 ?
JAVA 8 features include lambda expressions, functional interfaces, streams, default methods, and more.
Lambda expressions for functional programming
Functional interfaces for easy implementation of lambda expressions
Streams for efficient processing of large data sets
Default methods for backward compatibility
Date and time API improvements
Nashorn JavaScript engine
Parallel array sorting and processing
Type annotations for improved code analysis
Q6. Promotion and its types
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
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