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I appeared for an interview before Apr 2023.
Coding snippets and object oriented concepts
OOPs concepts refer to Object-Oriented Programming concepts like inheritance, encapsulation, polymorphism, and abstraction. GET and POST are HTTP methods used for sending data to a server.
OOPs concepts include inheritance, encapsulation, polymorphism, and abstraction.
Inheritance allows a class to inherit properties and behavior from another class.
Encapsulation involves bundling data and methods that operate on the data...
Inheritance is a mechanism in OOP where a class inherits properties and behaviors from another class. Polymorphism allows objects of different classes to be treated as objects of a common superclass.
Inheritance allows a class to inherit attributes and methods from another class, promoting code reusability.
Polymorphism allows objects of different classes to be treated as objects of a common superclass, enabling flexibil...
Annotations are metadata added to code to provide additional information or instructions.
Annotations are used in Java to provide metadata about classes, methods, variables, etc.
They can be used for documentation purposes, code analysis, or to generate code.
Examples include @Override, @Deprecated, and @SuppressWarnings annotations.
A rest controller is a component in a web application that handles incoming HTTP requests and returns appropriate responses.
Handles HTTP requests and maps them to appropriate handler methods
Typically used in RESTful web services to implement CRUD operations
Can be implemented using frameworks like Spring MVC in Java
A hash map is a data structure that stores key-value pairs and allows for efficient retrieval of values based on their keys.
Hash maps use a hash function to map keys to indexes in an array, where the corresponding values are stored.
They offer constant-time average case complexity for inserting, deleting, and searching for elements.
Examples of hash map implementations include HashMap in Java and unordered_map in C++.
Top trending discussions
I applied via Campus Placement and was interviewed before Aug 2021. There were 3 interview rounds.
Easy aptitude questions based on logical reasoning and basic maths.
Easy logic-based question based on arrays and strings with some javascript output-based questions.
Discussion about the projects that I made in college and the tech stack I know.
1 basic array/string-based problem.
Aptitude, reasoning,java MCQS
posted on 9 Jun 2022
posted on 26 Sep 2024
I applied via Approached by Company and was interviewed before Sep 2023. There were 4 interview rounds.
Online test to check our mathematical ability and logical reasoning
Test scenarios to test ATM machine
Test card insertion and ejection
Test PIN entry and validation
Test cash withdrawal and balance update
Test receipt printing
Test network connectivity and error handling
SQL joins are used to combine data from two or more tables based on a related column between them.
There are four types of SQL joins: inner join, left join, right join, and full outer join.
Inner join returns only the matching rows from both tables.
Left join returns all the rows from the left table and matching rows from the right table.
Right join returns all the rows from the right table and matching rows from the left ...
I appeared for an interview in Feb 2025, where I was asked the following questions.
Java is a versatile, object-oriented programming language designed for portability across platforms.
Object-Oriented: Supports concepts like inheritance, encapsulation, and polymorphism.
Platform-Independent: Write once, run anywhere (WORA) due to Java Virtual Machine (JVM).
Rich API: Offers a wide range of libraries for tasks like networking, I/O, and GUI development.
Strongly Typed: Enforces strict type checking at compi...
Effective thread usage enhances performance and responsiveness in applications by enabling concurrent execution of tasks.
Use thread pools to manage a fixed number of threads, reducing overhead. Example: Java's ExecutorService.
Implement synchronization mechanisms (like mutexes) to prevent race conditions. Example: using 'synchronized' keyword in Java.
Utilize concurrent data structures (like ConcurrentHashMap) to avoid l...
I applied via Company Website and was interviewed before Jun 2023. There were 3 interview rounds.
Basics questions , checking logical skills
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
They have an Online Aptitude cum coding test which contains some 20-30 Question to be done in 3Hrs.
20 Questions of Aptitude and 10 Questions of coding(Which includes Display output and correct the program Questions)
Easy Interview lasting about 30-45 Mins
They mostly ask questions based on projects and they like to see some certifications.
DSA questions were easy to medium.
I appeared for an interview in Jul 2023.
Basic question of indiabix topics and 10 code questions
Indexing in DBMS is a technique to improve the performance of queries by allowing faster retrieval of data.
Indexing creates a data structure that allows for quick lookups of data based on specific columns.
It helps in reducing the time taken to retrieve data from a database table.
Examples of indexing methods include B-tree, Hash indexes, and Bitmap indexes.
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