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I applied via Naukri.com and was interviewed before Feb 2023. There were 2 interview rounds.
Unit testing in Java is a software testing method where individual units or components of a software are tested in isolation.
Unit testing helps in identifying bugs early in the development process.
JUnit is a popular unit testing framework for Java.
Mockito is used for mocking dependencies in unit tests.
Unit tests should be fast, isolated, and repeatable.
Example: @Test annotation in JUnit is used to mark a method as a un
Schema design for a stack overflow website
Use tables for users, questions, answers, comments, votes, tags
Establish relationships between tables (e.g. user_id in questions table)
Include fields like title, body, created_at, updated_at, etc.
Implement features like upvoting, downvoting, tagging, commenting
Consider indexing for faster search and retrieval
Full stack development refers to the practice of developing both the front-end and back-end of a website or application.
Full stack developers are proficient in both front-end technologies like HTML, CSS, and JavaScript, as well as back-end technologies like Node.js, Python, or Java.
They are able to work on all aspects of a project, from designing user interfaces to managing databases and servers.
Examples of full stack ...
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I applied via Naukri.com and was interviewed in Aug 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Feb 2020. There were 6 interview rounds.
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.
Start from the first element and compare it with the next element
If the next element is smaller, swap them
Repeat this process for all elements in the array
Continue this process until no more swaps are needed
A program to print all prime numbers
Take input from user for range of numbers
Loop through the range and check if each number is prime
Print the prime numbers
Hashmap is a data structure that stores key-value pairs and allows constant time access to values based on their keys.
Hashmap uses a hash function to map keys to indices in an array.
Collisions can occur when multiple keys map to the same index, which can be resolved using techniques like chaining or open addressing.
Examples of hashmap implementations include Java's HashMap class and Python's dict type.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class and can also add new properties and methods.
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I applied via Walk-in and was interviewed in Mar 2021. There was 1 interview round.
I applied via Company Website and was interviewed in Dec 2020. There was 1 interview round.
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