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Infosys Java Spring Boot Developer Interview Questions, Process, and Tips
Top Infosys Java Spring Boot Developer Interview Questions and Answers
- Q1. explain new feature in java (labda, functional interface, default) , what is stream api , filter value not contain null, what is microservice, explain in real time , what ...read more
- Q2. What are java8 features? Why string is immutable? Difference between the checked exception and unchecked exception? Difference between throw and throws? Difference betwee ...read more
- Q3. What is singleton class? Inheritance, Polymorphism, Annotations in spring boot.
Infosys Java Spring Boot Developer Interview Experiences
8 interviews found
Anonymous
I was interviewed in Jul 2024.
(2 Questions)
- Q1. Method overriding Method overloading Exception Java 8 Find the 2nd non repeating character from a string Find the sum of square of even numbers
- Ans.
The question covers topics like method overriding, method overloading, exceptions, Java 8 features, and string manipulation.
Method overriding is when a subclass provides a specific implementation of a method that is already provided by its superclass.
Method overloading is when multiple methods have the same name but different parameters.
Exception handling is used to handle errors that occur during the execution of a pr...
- Q2. About project
(2 Questions)
- Q1. About project many questions
- Q2. Palindrome code
I applied via Job Portal and was interviewed in May 2024. There were 2 interview rounds.
(1 Question)
- Q1. What is singleton class? Inheritance, Polymorphism, Annotations in spring boot.
- Ans.
A singleton class is a class that allows only one instance of itself to be created and provides a global point of access to that instance.
Singleton classes are often used in Spring Boot for managing resources such as database connections or thread pools.
In Spring Boot, singleton beans are created by default, meaning that only one instance of a bean is created and shared across the application.
To create a singleton bean...
(1 Question)
- Q1. In this round I have been asked for my current roles and responsibilities in current organization, Questions on Design pattern, CI/CD pipeline.
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed in May 2024. There were 2 interview rounds.
(1 Question)
- Q1. What are java8 features? Why string is immutable? Difference between the checked exception and unchecked exception? Difference between throw and throws? Difference between inner class and anonymous cla...
- Ans.
Answers to common Java Spring Boot Developer interview questions.
Java8 features include lambda expressions, functional interfaces, streams, and default methods.
String is immutable in Java to ensure thread safety and prevent unintended modifications.
Checked exceptions are checked at compile time, while unchecked exceptions are not. Example: IOException vs NullPointerException.
throw is used to explicitly throw an excepti...
(1 Question)
- Q1. Some behavioural questions and discussed about packages
Skills evaluated in this interview
Agrim Jain
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
(2 Questions)
- Q1. Difference between springboot and Spring
- Ans.
Spring is a framework for building Java applications, while Spring Boot is a tool for easily creating stand-alone, production-grade Spring-based applications.
Spring is a framework that provides comprehensive infrastructure support for developing Java applications.
Spring Boot is a tool that simplifies the process of creating and deploying Spring-based applications.
Spring Boot includes embedded servers, which makes it ea...
- Q2. What is stateless and stateful API
- Ans.
Stateless API does not store client state on the server, while stateful API does.
Stateless API: Each request from client to server must contain all necessary information for the server to fulfill the request. No client state is stored on the server. Example: RESTful APIs.
Stateful API: The server stores client state, which can be accessed by subsequent requests. Example: HTTP sessions.
Skills evaluated in this interview
Infosys interview questions for designations
(1 Question)
- Q1. Explain new feature in java (labda, functional interface, default) , what is stream api , filter value not contain null, what is microservice, explain in real time , what is http vs https, inner join , out...
- Ans.
Explanation of Java features, Stream API, microservices, HTTP vs HTTPS, and SQL joins.
Lambda expressions allow for concise syntax to implement functional interfaces.
Stream API provides a way to process collections of objects in a functional style.
Microservices architecture breaks down applications into smaller, independent services.
HTTP is unencrypted protocol, HTTPS is encrypted using SSL/TLS for secure communication.
...
Skills evaluated in this interview
Get interview-ready with Top Infosys Interview Questions
sarthak sethi
I applied via Company Website and was interviewed in Jan 2024. There was 1 interview round.
(1 Question)
- Q1. @Qualifier put patch fsctory sessionfactory transient load get IOC
Java Spring Boot Developer Jobs at Infosys
I applied via Company Website and was interviewed in Apr 2023. There were 3 interview rounds.
Details on past project experience
(3 Questions)
- Q1. What is difference between rest and normal controller
- Ans.
Rest controllers are specifically used for RESTful web services, while normal controllers are used for traditional web applications.
Rest controllers are used to build RESTful web services that can accept and return JSON or XML data.
Normal controllers are used for traditional web applications that render HTML views.
Rest controllers use annotations like @RestController and @RequestMapping to define endpoints.
Normal contr...
- Q2. What is memory leak how will you identify
- Ans.
Memory leak is a situation where a program uses memory inefficiently, causing memory to be allocated but not released.
Memory leak occurs when a program allocates memory but does not release it after it is no longer needed.
Identifying memory leaks can be done using tools like profilers to analyze memory usage over time.
Common signs of memory leaks include increasing memory usage over time, frequent garbage collection, a...
- Q3. AWS concepts and ec2
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in Dec 2021. There was 1 interview round.
(1 Question)
- Q1. Spring boot, java(oops, multithreading,exception handling,strings,etc), mcroservices
Interview Preparation Tips
- Java architecture
- Multithreading
- OOPS
- Exception handling
What people are saying about Infosys
Interview questions from similar companies
I was interviewed in Apr 2017.
Interview Questionnaire
2 Questions
- Q1. Java questions...
- Q2. Tell me about urself and about us family and all
- Ans.
I am a software developer with a passion for coding and problem-solving. My family is supportive and has always encouraged my career in tech.
Experienced software developer
Passionate about coding and problem-solving
Supportive family that encourages my career in tech
Interview Preparation Tips
Experience: Easy questions are there
Duration: 1 hour
Total Questions: 90
Round: Group Discussion
Experience: 12 members are there only 9 got selected
Tips: Be confident in urself and specially work in Communication skills
Duration: 15 minutes
Round: Technical Interview
Experience: Asking all the concepts of Java like oops collections threads
Tips: Prepare well on Java
Round: HR Interview
Experience: Everything was Gud but due to my certificate problem I got rejected.. Otherwise everything is good.
Tips: Be confident
College Name: C. V. Raman College of Engineering
I was interviewed before Mar 2021.
(3 Questions)
Round duration - 60 minutes
Round difficulty - Easy
This was an easy round which went really smooth.
- Q1.
Nth Fibonacci Number Problem Statement
Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows:
F(n) = F(n-1) + F(n-2), with initial conditionsF(1) = F(2) = 1.Input:
... - Ans.
Calculate the Nth Fibonacci number efficiently using dynamic programming.
Use dynamic programming to store previously calculated Fibonacci numbers to avoid redundant calculations.
Start with base cases F(1) and F(2) as 1, then iteratively calculate F(n) using F(n-1) and F(n-2).
Ensure the input N is within the constraints 1 <= N <= 10000.
Example: For N = 5, the 5th Fibonacci number is 5 (1, 1, 2, 3, 5).
- Q2.
Prime Numbers Problem Statement
Given a positive integer
N, your task is to determine and return all prime numbers less than or equal toN.Input:
N = 10Output:
2 3 5 7Example:
Input:
N = 20
Out...
- Ans.
Implement a function to return all prime numbers less than or equal to a given positive integer N.
Create a function that takes a positive integer N as input
Iterate from 2 to N and check if each number is prime
Use a helper function to determine if a number is prime
Return an array of all prime numbers less than or equal to N
- Q3. What is a merge join in SQL?
- Ans.
A merge join in SQL is a method of combining two sorted datasets by matching corresponding rows based on a specified condition.
Merge join is used when joining two large datasets that are already sorted.
It is more efficient than other join methods like nested loop join or hash join for sorted datasets.
The join condition must be an equality condition.
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.i
Round duration - 30 minutes
Round difficulty - Easy
The round went excellent. I really enjoyed it. Just be confident about whatever you answer
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Infosys Interview FAQs
Some of the top questions asked at the Infosys Java Spring Boot Developer interview -
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Infosys Java Spring Boot Developer Interview Process
based on 8 interviews
1 Interview rounds
- Technical Round
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