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I applied via Job Fair and was interviewed in Feb 2024. There was 1 interview round.
Java is a backend language, Javascript is a frontend language. Synchronization in Java ensures only one thread can access a resource at a time. JavaScript is single-threaded but can handle asynchronous operations using callbacks, promises, and async/await.
Java is a backend language used for server-side development, while JavaScript is a frontend language used for client-side scripting.
Synchronization in Java is a techn...
A Pojo class is a simple Java class that contains only private fields, public getters and setters, and no-arg constructor.
Create private fields for employee details like name, id, salary, etc.
Generate public getters and setters for each field.
Include a no-arg constructor in the class.
Example: public class Employee { private String name; private int id; public String getName() { return name; } public void setName(String...
To compare two objects with the same class, override the equals and hashCode methods in the class.
Override the equals method to compare the fields of the objects for equality.
Override the hashCode method to generate a unique hash code based on the object's fields.
Ensure that the equals and hashCode methods are consistent with each other.
Example: public class Person { private String name; private int age; }
JPA Repository provides inbuilt methods for common database operations in Spring applications.
JPA Repository provides methods like save(), findById(), findAll(), deleteById(), etc.
These methods help in performing CRUD operations on entities without writing custom queries.
For example, userRepository.save(user) saves a user entity to the database.
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posted on 2 Jan 2021
I applied via Referral and was interviewed before Jan 2020. There were 6 interview rounds.
HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
HashMap allows quick access to values based on their keys
Keys must be unique and values can be duplicated
HashMap is not thread-safe and requires synchronization for concurrent access
Java's HashMap implementation uses hashing to distribute keys across buckets
posted on 5 Dec 2024
All aptitude type questions as well as core computer science subject questions comes
posted on 13 Dec 2024
Profit loss , number system, code decode
DDL stands for Data Definition Language, DML stands for Data Manipulation Language, and DQL stands for Data Query Language.
DDL is used to define the structure of database objects such as tables, indexes, and views.
DML is used to manipulate data in the database, such as inserting, updating, and deleting records.
DQL is used to retrieve data from the database using queries.
Examples: CREATE TABLE is a DDL statement, INSERT...
I applied via Campus Placement and was interviewed in Nov 2024. There was 1 interview round.
posted on 18 Sep 2024
I applied via LinkedIn and was interviewed before Sep 2023. There was 1 interview round.
Work experience refers to the practical knowledge and skills gained from employment in a specific field or industry.
Work experience includes tasks, responsibilities, and projects completed in a professional setting.
It can be gained through internships, part-time jobs, full-time positions, or volunteer work.
Work experience helps individuals develop industry-specific skills, build a professional network, and gain a bette...
SQL is a programming language used for managing and querying databases. Power BI is a business analytics tool for visualizing and analyzing data.
SQL stands for Structured Query Language and is used to communicate with databases.
SQL can be used to retrieve, update, and manipulate data in databases.
Power BI is a data visualization tool that allows users to create interactive reports and dashboards.
Power BI can connect to...
Math , gk, english
AI
Medium to Hard Questions
Some of the top questions asked at the TransUnion Java Full Stack Developer interview -
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