Mphasis Senior Software Engineer Interview Questions, Process, and Tips for Freshers

Q1. How to handle the exceptions globally in rest api Springboot
Ans. 
Handle exceptions globally in Springboot REST API
• Use @ControllerAdvice annotation to define global exception handling for all controllers

• Create a class annotated with @ControllerAdvice and define methods to handle specific exceptions

• Use @ExceptionHandler annotation to specify which exceptions the method should handle

• Return appropriate HTTP status codes and error messages in the exception handling methods
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Q2. Micro services design pattern and example
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Microservices design pattern involves breaking down a large application into smaller, independent services.
• Each microservice is responsible for a specific function or feature

• Communication between microservices is typically done through APIs

• Microservices can be deployed independently, allowing for easier scalability and maintenance

• Examples include Netflix (uses microservices for different functionalities like recommenda...read more
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Q3. Add 10% hike for the employees who are more than 5 years of experience using stream API.
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Q4. Map, flatmap method difference in stream
Ans. 
Map method transforms each element in a stream, while flatMap method transforms each element into a stream and then flattens the result.
• Map method applies a function to each element in the stream and returns a new stream with the transformed elements.

• FlatMap method applies a function that returns a stream for each element in the original stream, then flattens these streams into a single stream.

• Example: Using map to con...read more
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Q5. How to handle customized exceptions in controller advice with example code.
Ans. 
Handling customized exceptions in controller advice with example code
• Create a custom exception class that extends RuntimeException

• Create a controller advice class to handle exceptions globally

• Use @ExceptionHandler annotation in the controller advice class to handle specific exceptions

• Return a custom error response with appropriate status code and message
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Q6. What annotations are included in @SpringbootApplication annotation
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The @SpringBootApplication annotation includes @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations.
• Includes @Configuration annotation to specify that the class can be used by the Spring IoC container as a source of bean definitions.

• Includes @EnableAutoConfiguration annotation to enable Spring Boot's auto-configuration feature.

• Includes @ComponentScan annotation to specify the base packages to scan f
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Q1. Java Springboot microservices
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Q2. ArrayList Hashmaps
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Q3. Spring Cloud kafka
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The questions were of medium difficulty level

They had given a topic and each were given 2minutes to discuss.

Q1. Questions about oops, related to any one programming language, project you worked on. Just answer it confidently
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Q1. We discussed about the offer letter
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