Neumeric Technologies Interview Questions and Answers

OOPs concepts are the fundamental principles of object-oriented programming.

• Encapsulation: bundling of data and methods that operate on that data within a single unit

• Inheritance: ability of a class to inherit properties and methods from a parent class

• Polymorphism: ability of objects to take on multiple forms or have multiple behaviors

• Abstraction: hiding of complex implementation details and providing a simplified inter...read more

String is a sequence of characters. Types include immutable and mutable strings.

• String is a class in Java used to represent a sequence of characters.

• Immutable strings cannot be modified once created, while mutable strings can be modified.

• Examples of immutable strings include String literals and String objects created using the String constructor.

• Examples of mutable strings include StringBuilder and StringBuffer.

Java supports immutable strings which cannot be changed once created.

• Immutable strings are created using the String class in Java.

• Any operation that modifies a string actually creates a new string object.

• Immutable strings are thread-safe and can be safely shared among multiple threads.

• Examples of immutable strings in Java include string literals and strings created using the String constructor.

I am a Junior Java Developer with a strong passion for coding and problem-solving.

• I have a Bachelor's degree in Computer Science.

• I have completed several Java projects during my studies, including a web application for managing student records.

• I am familiar with object-oriented programming principles and have experience with Java frameworks like Spring and Hibernate.

• I am a quick learner and enjoy staying up-to-date wit...read more

A package in Java is a namespace that organizes a set of related classes and interfaces, promoting modularity and reusability.

• Packages help avoid naming conflicts by grouping classes with similar functionality.

• Example: 'java.util' is a package that contains utility classes like ArrayList and HashMap.

• Packages can be created using the 'package' keyword at the top of a Java file.

• Example: 'package com.example.myapp;' defin...read more

JMeter is a powerful tool for performance testing and load testing of applications, simulating multiple users and analyzing performance metrics.

• Load Testing: Simulates heavy loads on servers to test performance under stress, e.g., testing a web application with 1000 concurrent users.

• Performance Testing: Measures response times and throughput, helping identify bottlenecks in applications.

• Functional Testing: Validates ap...read more

Setting up a Playwright environment involves installing dependencies, creating a project, and configuring browsers.

• 1. Install Node.js: Download and install Node.js from the official website (https://nodejs.org/).

• 2. Create a new project: Use the command 'mkdir my-playwright-project && cd my-playwright-project' to create a new directory.

• 3. Initialize npm: Run 'npm init -y' to create a package.json file for your p...read more

I have strong skills in HTML, CSS, and JavaScript for frontend development.

• Proficient in HTML for structuring web pages

• Skilled in CSS for styling and layout

• Experienced in JavaScript for interactivity and dynamic content