Einfochips Android Developer Interview Questions and Answers

Q1. Questions from past projects
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Q2. Questions from Process
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It was medium level question

Q1. It was regarding react-native
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Hacker Rank Questions - String Manipulation - level easy

Hacker Rank Questions - 2D matrix - level easy

Q1. Expected Salary
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Q2. Why do you choose Apexon?
Ans. 
I choose Apexon for its innovative technology, strong company culture, and opportunities for growth.
• Innovative technology: Apexon is known for its cutting-edge solutions and commitment to staying ahead of industry trends.

• Strong company culture: I value the emphasis Apexon places on teamwork, collaboration, and employee development.

• Opportunities for growth: Apexon offers a clear path for career advancement and continuou
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Q1. Java 8 vs 7 case studies. Stream vs collections case studies.
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Java 8 introduced streams which are more efficient than collections in certain cases.
• Streams are useful for processing large amounts of data in parallel

• Collections are better for small amounts of data or when modifying data

• Java 8's stream API provides a functional programming approach to data processing

• Java 7's collections API is more traditional and imperative

• Example: Using streams to filter and map data from a databa...read more
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Q1. Add one to a given String of number
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Add one to a given String of number
• Convert the string to integer, add one, and convert back to string

• Handle edge cases like leading zeros

• Consider using built-in functions like parseInt() and toString()
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Q1. Hash map implementation. exception handling in lambda exp. microservices architecture.
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Q1. Why u want to join?
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Basic coding question and JavaScript in depth questions

This round was dependent on the end client. It lasted for approximately one hour and involved a technical assessment from the client side conducted by a panel of three interviewers. The panel was knowledgeable, attentive, and cooperative, with questions that were relevant to the work experience.

Q1. What are your salary expectations?
Ans. 
My salary expectations are in line with industry standards for a Senior Engineer position.
• Research industry standards for Senior Engineer salaries

• Consider my level of experience and skills

• Factor in the cost of living in the area where the job is located
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Q2. Are you comfortable with the designated work location and with working at the client site?
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Yes, I am comfortable with the designated work location and working at the client site.
• I have experience working at client sites in previous roles

• I am adaptable and can work effectively in different environments

• I am willing to travel if required for the job
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Q3. Are you currently serving a notice period, and is that notice period negotiable?
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Yes, I am currently serving a notice period of 1 month, and it is negotiable.
• Yes, I am currently serving a notice period of 1 month.

• I am open to discussing the notice period and negotiating if needed.

• I believe in maintaining open communication with my current employer during this transition period.
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Q4. What is the earliest date you would be able to join after receiving the offer letter?
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I can join within 2 weeks of receiving the offer letter.
• I can start within 2 weeks of receiving the offer letter.

• I need a 2-week notice period before joining.

• My earliest availability is 2 weeks after receiving the offer.
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Objective technical question was given.

Q1. Java, DB, Spring, UI related questions asked.
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Q2. CoreJava Multi-threading
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Q3. Database many to many relattionship related question
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Q1. Mutli-threading related questions
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Q1. Salary expectation and joining details.
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Q1. Java Multithreading
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Q2. Core java using java 8 features
Ans. 
Core Java features in Java 8 include lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Default methods allow interfaces to have methods with implementat...read more
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Q3. Oops concepts in java
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Oops concepts in java refer to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hiding the imp...read more
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Q4. Spring MVC and Batch
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Q5. Basic SQL queries, joins and all
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