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I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.
HashMap uses an array of buckets to store key-value pairs
The hash code of the key is used to determine the index of the bucket
If multiple keys have the same hash code, they are stored in a linked list within the bucket
When retrieving a value, the hash code of the key is used to find the bucket and then the linked list is...
OOP in Java stands for Object-Oriented Programming which is a programming paradigm based on objects.
OOP focuses on creating objects that have properties and methods
Encapsulation, Inheritance, and Polymorphism are the key concepts of OOP
Java supports OOP through classes and interfaces
Example: A car can be represented as an object with properties like color, model, and methods like start, stop, and accelerate
posted on 5 Jul 2020
I applied via Recruitment Consultant and was interviewed in Jan 2020. There were 3 interview rounds.
posted on 17 May 2021
Develop a product catalogue in core Java using Maven for efficient project management and dependency handling.
Set up a Maven project: Use 'mvn archetype:generate' to create a new project structure.
Define dependencies: Add necessary libraries in 'pom.xml', e.g., 'javax.persistence' for ORM.
Create entity classes: Define product attributes like 'id', 'name', 'description', and 'price'.
Implement CRUD operations: Use JPA or...
What people are saying about HGS
I applied via Referral and was interviewed before Jun 2021. There were 2 interview rounds.
Coding test
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
Object oriented programming is a programming paradigm that uses objects to represent and manipulate data.
Objects encapsulate data and behavior
Classes define the blueprint for objects
Inheritance allows for code reuse and polymorphism
Examples include Java, C++, and Python
posted on 29 Sep 2021
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
I applied via Referral and was interviewed in Apr 2021. There were 7 interview rounds.
posted on 14 Aug 2021
I applied via Campus Placement and was interviewed before Aug 2021. There were 3 interview rounds.
Verbal, Reasoning, Quant
based on 29 reviews
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