Prodapt Java Back End Developer Interview Questions and Answers

Q1. Functional Programming in Java,Oops Concepts
Ans. 
Functional programming in Java focuses on using functions to perform tasks, while OOPs concepts revolve around classes and objects.
• Functional programming in Java involves using higher-order functions, lambda expressions, and streams to process data.

• OOPs concepts in Java include inheritance, encapsulation, polymorphism, and abstraction.

• Functional programming promotes immutability and avoids side effects, while OOPs allo...read more
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Q2. Spring boot related questions
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Q3. Functional Programming in java
Ans. 
Functional programming in Java focuses on using functions to perform operations on data, emphasizing immutability and avoiding side effects.
• Uses higher-order functions like map, filter, and reduce to manipulate data

• Emphasizes immutability to avoid side effects

• Encourages declarative programming style

• Leverages lambda expressions and streams for concise code

• Example: Using map to transform a list of integers
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Q1. Explain Spring Boot
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Q2. What is Redux in React
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Q3. What is Context API in React
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Q1. Spring Security Implementation
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Q2. Api design Implementation
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API design implementation involves creating a well-structured and user-friendly interface for interacting with software applications.
• Understand the requirements and use cases for the API

• Design clear and consistent endpoints with proper documentation

• Implement secure authentication and authorization mechanisms

• Follow RESTful principles for creating APIs

• Consider scalability and performance optimizations
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Q3. Stream API coding question
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1 Assignment which you need to solve in front of the interviewer

Q1. Questions on Java Streams
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Q2. Questions on springboot
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Q1. Java8 coding to filter the vowels
Ans. 
Using Java8 to filter vowels from an array of strings
• Use Java8 stream and filter to iterate through each string in the array

• Use a lambda expression to check if each character is a vowel

• Collect the filtered strings into a new array
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Q2. Java8, Multi Threading, Hibernate, JPA
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Q1. Based on the resume
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Q1. Scenario based questions
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Q1. Package discussion
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Java progaming, coding

Q1. Mainly focus on project and collection and oops concept
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