Microland Java Full Stack Developer Interview Questions and Answers

Q1. About HTML, CSS, JS, Python ?
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Q2. What is Self Keyword in python?
Ans. 
The self keyword in Python is a reference to the current instance of a class.
• Self is the first parameter in the definition of instance methods within a class.

• It is used to access variables and methods within the class.

• Self is not a reserved keyword in Python, but it is a convention to use self as the first parameter in instance methods.
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Q1. They Not Schedule Client Interview
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Q1. CTC from the previous employer
Ans. 
CTC from previous employer is confidential information.
• CTC from previous employer is considered confidential

• It is not appropriate to disclose salary details from previous job

• Focus on discussing your skills and experiences instead of previous salary
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Q2. Expected CTC for applying in neosoft
Ans. 
Expected CTC should be based on industry standards, experience, skills, and location.
• Research industry standards for Full Stack Developers in the specific location

• Consider your experience level and skills when determining expected CTC

• Factor in the cost of living in the location where the job is based

• Be prepared to negotiate based on the job responsibilities and benefits offered
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Coding test in javascript and question related to the tech stack

Q1. If there is any conflict between you and you coworker, what would you do
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Topics consist of profit-loss, probability, permutation combination etc.

Coding question related to topics array and strings.

Q1. Questions related to Java, oops, DBMS and tech-stack are mention in the resume
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Q2. Role of java in backend, explain polymorphism in oops, reverse string.
Ans. 
Java is a popular backend language, polymorphism allows objects to be treated as instances of their parent class, reverse string by iterating through characters.
• Java is commonly used in backend development for its robustness and scalability.

• Polymorphism in OOP allows objects to be treated as instances of their parent class, enabling flexibility and reusability.

• To reverse a string, iterate through the characters from th...read more
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Q1. It also consists of technical questions, future goals, project discussion mentioned in the resume and related tech stack, future goals, etc.
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Round duration - 30 minutes
Round difficulty - Medium

Basic questions from Operating System, Object Oriented Programming, DBMS, various tech stacks used in project. Be through with the basics of these subjects. Like in my case DDL and scheduling algorithms were asked.
Asked questions related on css,javascript and some sql queries. Interviewer was helpful. If one gives a answer that is not exactly correct, he provided me hints .

Q1. Can you explain the various CPU scheduling algorithms?
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Q2. 
Remove Character from String Problem Statement
Given a string str and a character 'X', develop a function to eliminate all instances of 'X' from str and return the resulting string.
Input:
The first lin...read more
Ans. Iterative Solution
• We create an empty string that will store our final result. We will return it at the end.
• We iterate from 0 to the length of the string. Say, our loop variable is i. We can then access the ith character as input[i]
• If the ith character equals the character c i.e input[i] == c, then we skip this character and do nothing.
• Else we need to append the character to the output string.
• We finally return the outpu...read more
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Q1. Ask technical from your domain....either from PHP, Nodejs or Java
Ans. Basic and advanced concept f related technologies....oops is common....also ask puzzle sometimes.
Answered by Tanuj Kumar
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3 coding program.

Q1. Managerial round with manager
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Q1. Human Resource round
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Q1. How node handles concurrency
Ans. 
Node.js uses an event-driven, non-blocking I/O model to handle concurrency.
• Node.js uses an event loop to handle multiple requests concurrently.

• It employs a single-threaded event loop that can handle thousands of concurrent connections.

• Node.js uses non-blocking I/O operations, allowing it to efficiently handle multiple requests without blocking the execution of other code.

• It utilizes callbacks and promises to handle asy...read more
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Q2. What is use effect use memo
Ans. 
useEffect and useMemo are hooks in React that allow for managing side effects and optimizing performance.
• useEffect is used to perform side effects in functional components, such as fetching data or subscribing to events.

• useMemo is used to memoize the result of a function, preventing unnecessary re-computations.

• Both hooks are part of the React Hooks API introduced in React 16.8.
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Q3. What is diffence between spread and rest operator
Ans. 
Spread operator is used to unpack elements from an array, while rest operator is used to gather elements into an array.
• Spread operator is denoted by three dots (...) and can be used to spread the elements of an array into individual arguments.

• Rest operator is also denoted by three dots (...) and can be used to gather multiple elements into an array.

• Spread operator can be used in function calls, array literals, and obje...read more
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