Infosys IT Analyst Interview Questions, Process, and Tips

Spring boot annotations are used to simplify the development process by reducing boilerplate code.

• Annotations like @RestController, @RequestMapping, and @Autowired are commonly used

• They help with mapping HTTP requests to controller methods and dependency injection

• Other useful annotations include @Component, @Service, and @Repository

• Annotations can also be used for caching, security, and database access

To find common elements in 2 array lists

• Iterate through both arrays and compare each element

• Use a hash set to store elements of one array and check for common elements in the other array

• Sort both arrays and use two pointers to compare elements

• Use built-in functions like intersect() in Python or array_intersect() in PHP

Hibernate methods and uses

• Hibernate is an ORM tool used to map Java objects to database tables

• It provides methods for CRUD operations like save(), update(), delete()

• It also supports HQL (Hibernate Query Language) for complex queries

• Hibernate caching can improve performance by reducing database hits

Difficulty in managing project timelines due to unexpected delays

• Identified the root cause of the delays and communicated with stakeholders

• Revised project plan and timelines to accommodate the delays

• Prioritized tasks and delegated responsibilities to team members

• Regularly monitored progress and made necessary adjustments

• Successfully completed the project within the revised timeline

Spring is a framework for building Java applications, while Spring Boot is a tool for quickly creating Spring-based applications.

• Spring provides a comprehensive framework for building Java applications, while Spring Boot is a tool that simplifies the process of creating Spring-based applications.

• Spring Boot provides a set of pre-configured dependencies and an embedded web server, making it easy to get started with Spri...read more

Coding to interface means programming to a specific set of methods and properties defined by an interface.

• Coding to interface allows for flexibility and modularity in code.

• It separates the implementation from the interface, making it easier to change the implementation without affecting the interface.

• It also allows for easier testing and mocking of objects.

• Example: A class implementing the Comparable interface can be c...read more

Yes, a constructor can be private.

• A private constructor can be used to prevent the creation of objects of a class from outside the class.

• It can also be used to implement the Singleton design pattern.

• Private constructors are declared using the private access modifier.

Yes, abstract class can have constructor.

• Abstract class can have a constructor, but it cannot be instantiated directly.

• The constructor of an abstract class is called when a concrete subclass is instantiated.

• The purpose of the constructor in an abstract class is to initialize the common state of the subclasses.

• Example: abstract class Animal { public Animal() { System.out.println('Animal constructor called'); } }

Yes, I have experience in PHP coding and can work as an individual contributor.

• I have worked on multiple PHP projects and have a good understanding of the language.

• I am comfortable working independently and have experience delivering projects on my own.

• I am also familiar with collaborating with teams and can adapt to different work environments.

• Examples of my PHP projects include building a custom CMS and developing e-