Infosys Application Developer Interview Questions and Answers for Experienced

Q1. Boxing Unboxing
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Q2. Abstract class and interface
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Q1. Basic questions of frameworks
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Q2. Java, Spring, Spring Boot, Microservices
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Q1. Brief in frameworks and frequent Answers
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Q1. Explain Microservice, what is it, how it's work,
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Microservices are small, independent, and loosely coupled services that work together to form a larger application.
• Microservices are designed to be modular and scalable.

• Each microservice performs a specific task and communicates with other microservices through APIs.

• Microservices can be developed and deployed independently of each other.

• They offer flexibility, fault tolerance, and faster time-to-market.

• Examples of micr
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General coding questions from java

Spring boot application, how it's work?

Q1. One-to-one talk with HR for general purpose.
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Q1. What is ref cursor
Ans. 
Ref cursor is a pointer to a result set in Oracle database.
• Ref cursor is used to return query results from a stored procedure or function.

• It allows the client application to fetch and process the result set.

• Ref cursor is declared using the SYS_REFCURSOR type in Oracle PL/SQL.
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Q1. Give the example of abstraction
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Abstraction is the process of simplifying complex systems by focusing on essential details.
• Abstraction allows developers to hide unnecessary details and only expose relevant information.

• It helps in creating reusable code and improves code maintainability.

• For example, in object-oriented programming, a class is an abstraction that encapsulates data and behavior.

• Another example is the use of APIs, where developers interac...read more
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