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Infosys Springboot Developer Interview Questions, Process, and Tips
Top Infosys Springboot Developer Interview Questions and Answers
- Q1. SpringBoot Annotations configuration linkedlist vs arraylist tomcat vs other application servers AJAX JSON Method overriding Polymorphism Struts Architecture Pom.xml Inte ...read more
- Q2. What is method overloading and method overriding
- Q3. Difference between restcontroller and controller?
Infosys Springboot Developer Interview Experiences
5 interviews found
Anonymous
I applied via Company Website and was interviewed in Jan 2024. There was 1 interview round.
(5 Questions)
- Q1. What is method overloading and method overriding
- Ans.
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
Method overloading allows a class to have multiple methods with the same name but different parameters.
Method overriding occurs when a subclass provides a specific implementation of a method that is...
- Q2. Difference between restcontroller and controller?
- Ans.
RestController is specialized version of controller used for RESTful web services in Spring framework.
RestController is used to create RESTful web services that return JSON or XML data, while Controller is used to create web pages that return HTML data.
RestController annotation is a combination of @Controller and @ResponseBody annotations.
RestController is typically used for building RESTful APIs, while Controller is u...
- Q3. Difference between @bean and @ component
- Ans.
The @Bean annotation is used to define a method that returns an object to be registered as a bean in the Spring application context. The @Component annotation is used to indicate that a class is a Spring component.
The @Bean annotation is used on methods within a @Configuration class to define Spring beans.
The @Component annotation is used on classes to indicate that they are Spring components.
The @Bean annotation allow...
- Q4. What is bean factory?
- Ans.
Bean factory is a container for managing beans in Spring framework.
Bean factory is responsible for creating, managing, and configuring beans in a Spring application.
It uses inversion of control (IoC) to manage the beans.
Beans are defined in a configuration file (XML or Java) and the bean factory instantiates them.
Example: ApplicationContext is a type of bean factory in Spring framework.
- Q5. What is singleton?
- Ans.
Singleton is a design pattern that restricts the instantiation of a class to only one object.
Ensures a class has only one instance and provides a global point of access to it.
Commonly used in scenarios where a single instance of a class is needed, such as database connections or thread pools.
Implemented by creating a static method to return the same instance of the class every time it is called.
Interview Preparation Tips
- Java8
- Springboot annotations
Skills evaluated in this interview
Payel Roy
I applied via LinkedIn and was interviewed in Aug 2024. There was 1 interview round.
(8 Questions)
- Q1. Spring filters explained briefly
- Ans.
Spring filters are components in Spring framework that intercept incoming HTTP requests and outgoing HTTP responses.
Filters are used to perform tasks like logging, authentication, authorization, etc.
They are configured in the web.xml file or using annotations like @WebFilter.
Example: javax.servlet.Filter interface is implemented to create custom filters.
- Q2. Spring security concepts
- Q3. Flat map vs map
- Ans.
Flat map is used to flatten nested collections, while map is used to transform elements in a collection.
Flat map is used when you have a collection of collections and you want to flatten it into a single collection.
Map is used to transform each element in a collection using a given function.
Example: Using flatMap to flatten a list of lists - list.stream().flatMap(List::stream).collect(Collectors.toList())
Example: Using...
- Q4. Stream apI in java 8 explanation
- Ans.
Stream API in Java 8 allows for functional-style operations on collections.
Stream API provides a way to process collections of objects in a functional way.
It supports operations like filter, map, reduce, and collect.
Example: List
names = Arrays.asList("Alice", "Bob", "Charlie"); Stream stream = names.stream(); Example: List
numbers = Arrays.asList(1, 2, 3, 4, 5); int sum = numbers.stream().filter(n -> n % 2 == 0).mapToI
- Q5. Paraller programming concepts in java 8
- Ans.
Java 8 introduced parallel programming concepts like streams, parallel streams, and CompletableFuture.
Java 8 introduced streams which allow for functional-style operations on collections.
Parallel streams allow for parallel processing of stream elements, improving performance on multi-core processors.
CompletableFuture class enables asynchronous programming by representing a future result of an asynchronous computation.
- Q6. Abstract vs interfcae
- Ans.
Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
Abstract classes can have constructors, fields, and methods, while interfaces cannot.
A class can implement multiple interfaces but can only extend one abstract class.
Abstract classes are used to define a common behavior for subclasses, while interfaces are used to define a contract for classes to implement.
...
- Q7. SOLID principle explain
- Ans.
SOLID is a set of five design principles to make software designs more understandable, flexible, and maintainable.
S - Single Responsibility Principle: A class should have only one reason to change.
O - Open/Closed Principle: Software entities should be open for extension but closed for modification.
L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without aff...
- Q8. Static keyword explain
- Ans.
Static keyword is used in Java to create class-level variables and methods.
Static variables are shared among all instances of a class
Static methods can be called without creating an instance of the class
Static keyword can also be used to create static blocks for initialization
Skills evaluated in this interview
I applied via Company Website and was interviewed before Aug 2022. There were 2 interview rounds.
(7 Questions)
- Q1. 1. Spring Boot Annotations
- Q2. Java 8 features
- Q3. Questions on mysql
- Q4. Hibernate caching
- Q5. Linkedlist and arraylist
- Q6. Hashtable questions
- Q7. Map interface questions
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Apr 2022. There were 3 interview rounds.
(1 Question)
- Q1. SpringBoot Annotations configuration linkedlist vs arraylist tomcat vs other application servers AJAX JSON Method overriding Polymorphism Struts Architecture Pom.xml Interceptors in Struts Framework Action...
- Ans.
The question covers various topics related to SpringBoot development.
LinkedList vs ArrayList: LinkedList is better for frequent insertions/deletions, ArrayList is better for frequent access.
Tomcat vs other application servers: Tomcat is a lightweight server, while others like JBoss are more feature-rich.
AJAX JSON: AJAX is used to make asynchronous requests to the server, while JSON is a lightweight data interchange for...
(1 Question)
- Q1. Questions based on agile model sprint testing code review tools why I am leaving my company Projects worked on Roles of yours in Projects.Technologies used.
Interview Preparation Tips
- SpringBoot
- Application servers
- OOPS
- Data Structures
Skills evaluated in this interview
Infosys interview questions for designations
(2 Questions)
- Q1. 1. Coding questions on sorting
- Q2. Writing basic SQL queries
Interview Preparation Tips
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Interview questions from similar companies
I applied via Walk-in
(5 Questions)
- Q1. Write a Spring boot application to accept two values and generate an XML file.
- Ans.
Create a Spring Boot application to generate an XML file from two input values.
Create a Spring Boot project using Spring Initializr
Create a REST controller to accept two input values
Use JAXB to generate XML from the input values
Return the generated XML file as response
- Q2. Write a program to insert comma after every character.
- Ans.
Program to insert comma after every character in a string.
Iterate through each character in the string
Append the character and a comma to a new string
Handle the last character to avoid adding an extra comma
- Q3. Find the third max Salary in Oracle.
- Ans.
Use SQL query with ROW_NUMBER() function to find the third max salary in Oracle.
Use ROW_NUMBER() function to assign a unique row number to each row based on the salary in descending order.
Filter the result where the row number is 3 to get the third max salary.
- Q4. Microservies design pattern. Explain annotation used in circuit breaker.
- Ans.
Circuit breaker is a design pattern used in microservices to prevent cascading failures.
Circuit breaker is used to detect failures and prevent them from causing further issues.
It works by wrapping a protected function call in a circuit breaker object.
Annotations like @CircuitBreaker in Spring Cloud are used to implement circuit breaker pattern.
These annotations allow developers to easily add circuit breaker functionali
- Q5. JPA vs Hibernate
- Ans.
JPA is a specification while Hibernate is an implementation of JPA.
JPA is a Java specification for managing relational data in applications.
Hibernate is an ORM framework that implements the JPA specification.
Hibernate provides additional features beyond JPA, such as caching and lazy loading.
JPA is vendor-neutral, allowing developers to switch between different JPA implementations.
Hibernate is a popular choice for JPA i...
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed in Dec 2024. There was 1 interview round.
(8 Questions)
- Q1. What improvements to interfaces were introduced in Java 8 that were missing in Java 7, specifically regarding static and default methods?
- Q2. Explain internal working of HashMap ? How to synchronize it ?
- Q3. Given a list of employees with their ratings, how can you sort the employees based on their ratings using the Java 8 Streaming API?
- Q4. Will the program compile if the parent class throws a runtime exception while the child class throws an arithmetic exception?
- Q5. In a Spring Boot application with two databases, how can you configure JDBC to specify which database to use?
- Q6. How to use a jetty server in your spring boot application ?
- Q7. Difference between @RequestParam and @PathVariable ?
- Q8. How would you handle a scenario where one microservice is awaiting a response from another microservice that is taking an extended time to respond?
Interview Preparation Tips
Selected
I applied via Company Website and was interviewed in Dec 2024. There were 5 interview rounds.
An aptitude test is an assessment to measure a candidate mental aptitude/mental ability
(3 Questions)
- Q1. Can you briefly Tell us about yourself?
- Q2. What do you consider to be your strongest points?
- Q3. Which programming languages do you use regularly in your work
A group discussion is a structured conversation in which participants share their ideas, perspectives, and solutions on a specific topic.
(2 Questions)
- Q1. What motivates you to seek employment at Wipro?
- Q2. What are your long-term career goals?
Assignment details refer to the specifics of an assignment, including any documents and/or emails or subsequent correspondence between the company and the client.
Interview Preparation Tips
- Your academic achievement
- Responsibility related to your p
- The way you address mistakes at
Selected
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
(6 Questions)
- Q1. Java 8 , java 11 and java 17 features?
- Ans.
Java 8 introduced lambda expressions, Java 11 added local-variable syntax for lambda parameters, and Java 17 included sealed classes and pattern matching.
Java 8 introduced lambda expressions for functional programming.
Java 11 added local-variable syntax for lambda parameters to simplify code.
Java 17 included sealed classes to restrict inheritance and pattern matching for instanceof checks and type casts.
- Q2. Dispatcher servlet, design patterns
- Q3. @SpringbootApplication annotation, actuators
- Q4. String Coding question with java 8 features such as lambda function and stream api
- Q5. Number of words in a string
- Ans.
Count the number of words in a given string.
Split the string by spaces and count the number of resulting elements.
Handle edge cases like multiple spaces or empty strings.
Consider punctuation marks as part of words unless specified otherwise.
- Q6. Microservice design patterns
I applied via Walk-in and was interviewed in Oct 2024. There were 2 interview rounds.
(3 Questions)
- Q1. 2 way 3 way matching
- Ans.
2 way 3 way matching is a process used in accounting to ensure accuracy in financial transactions.
2 way matching involves matching the invoice with the purchase order
3 way matching involves matching the invoice with the purchase order and the receiving report
Helps in detecting errors or discrepancies in the billing process
- Q2. Accounts payable and accounts receivable
- Q3. Some general questions
(7 Questions)
- Q1. T code to review po
- Ans.
ME23N
ME23N is the T code used to review purchase orders in SAP
It allows users to view details of a specific purchase order, such as vendor information, item details, and delivery status
- Q2. If you find mismatch in quantity who to you contact
- Ans.
Contact the inventory manager or supervisor for resolution.
Contact inventory manager or supervisor immediately
Verify the discrepancy with relevant documentation
Discuss potential causes of the mismatch and work towards resolution
- Q3. Vendor ledger entry
- Q4. Where you see grn
- Ans.
GRN stands for Goods Receipt Note, which is a document used in the procurement process to confirm the receipt of goods.
GRN is used in the procurement process to verify that the goods ordered have been received in good condition.
It includes details such as the quantity, quality, and condition of the goods received.
GRN is an important document for inventory management and accounting purposes.
It is typically generated by ...
- Q5. First self introduction
- Q6. How you learn from where you learn
- Q7. You have theoretical knowledge no practical how can u do
- Ans.
I would seek hands-on experience through internships, workshops, or online tutorials to bridge the gap between theory and practice.
Seek internships or part-time jobs in the field to gain practical experience
Participate in workshops or training sessions to apply theoretical knowledge in real-life scenarios
Utilize online tutorials or courses to practice and implement theoretical concepts
Collaborate with professionals in ...
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