Round duration - 45 minutes
Round difficulty - Medium

Technical Interview round that lasted for about 45 minutes. Questions were based on Java, Java design Patterns and OOPS Concepts.

Q1. Java Question
What are static methods in Interfaces?
Ans. 
Static methods are useful for designing utility methods since they contain method implementation that is owned by the interface and invoked using the interface name. They cannot be overridden.
Answered by CodingNinjas
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Q2. Java Question
Why was a new version of Java (Java 8) needed in the first place? (
Ans. 
There are two primary reasons for this:
1. Due to significant developments in hardware, Java now needs to make better use of multi-core CPUs.
2. Make new Functional Programming (FP) features available to users.
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Q3. Java Question
What is a default method, and when does it get used?
Ans. 
The default method is found in the interface and involves an implementation. The technique extends an interface's functionality while maintaining backward compatibility with existing classes that implement the interface.
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Q4. Java Question
Describe in how many ways can you create a singleton pattern?
Ans. 
There are two ways of creating a Singleton pattern.
1. Early Instantiation : It is responsible for the creation of instance at load time.
2. Lazy Instantiation : It is responsible for the creation of instance when required.
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Round duration - 60 minutes
Round difficulty - Medium

Technical Interview round that lasted for about 45 minutes. Questions were based on Spring boot and Microservices Concepts.

Q1. Java Question
Difference between Bridge Pattern and Adapter Button
Ans. 
The motive of the Adapter pattern is to make interfaces of one or more classes to look similar. The Bridge pattern is designed to isolate a class's interface from its implementation so we can vary or substitute the implementation without changing the client code.
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Q2. SpringBoot Question
What is the difference between @RestController and @Controller in Spring Boot?
Ans. 
@Controller Map of the model object to view or template and make it human readable but @RestController simply returns the object and object data is directly written in HTTP response as JSON or XML.
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Q3. Technical Question
Difference between Spring and Spring Boot
Ans. 
1. Spring framework is a java EE framework that is used to build applications. Spring Boot framework is mainly used to develop REST API’s
2. The primary feature of the Spring framework is dependency injection. The main feature of the Spring Boot is Autoconfiguration. 
3. The goal pf Spring is to make Java EE (Enterprise Edition) development easier, allowing developers to be more productive. Spring Boot provides the ...read more
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Q4. Technical Question
Difference between Monolithic and Microservices Architecture
Ans. 
Monolithic Architecture: It is "like a big container" where all the software components of an application are bundled together tightly. It is usually built as one large system and is one code-base. 
Microservice Architecture: It involves structuring an application in the form of a cluster of small, autonomous services modeled around a business domain. The functional modules can be deployed independently, are scalab...read more
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Round duration - 30 minutes
Round difficulty - Easy

This was a typical HR round with some standard Behavioral questions

Q1. Basic HR Question
Why should we hire you ?
Ans. 
Tip 1 : The cross questioning can go intense some time, think before you speak.
Tip 2 : Be open minded and answer whatever you are thinking, in these rounds I feel it is important to have opinion.
Tip 3 : Context of questions can be switched, pay attention to the details. It is okay to ask questions in these round, like what are the projects currently the company is investing, which team you are mentoring. How all is the...read more
Answered by CodingNinjas
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