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I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.
Polymorphism is the ability of an object to take on many forms.
Polymorphism allows objects of different classes to be treated as if they are of the same class.
It is achieved through method overriding and method overloading.
Examples include function overloading, operator overloading, and inheritance.
Polymorphism helps in achieving loose coupling and flexibility in code design.
Abstract class is a class that can have both abstract and non-abstract methods while an interface can only have abstract methods.
Abstract class can have constructors while interface cannot
A class can implement multiple interfaces but can only inherit from one abstract class
Abstract class can have instance variables while interface cannot
Abstract class can provide default implementation for some methods while interface ...
Custom exceptions can be created by extending the Exception class and defining the desired behavior.
Create a new class that extends the Exception class
Define the desired behavior for the exception
Throw the custom exception when necessary
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I applied via Approached by Company and was interviewed before Sep 2023. There were 2 interview rounds.
It was a test to create a login page and connect to database
Interface is a contract with no implementation, while abstract class can have some implementation.
Interface cannot have any implementation, only method signatures
Abstract class can have both abstract methods and concrete methods
A class can implement multiple interfaces but can only inherit from one abstract class
Interfaces are used to achieve multiple inheritance in Java
Main concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Ability of a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation details and showing only the nec
I applied via Naukri.com and was interviewed in Feb 2021. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Oct 2022. There were 2 interview rounds.
Electrical and Electronic test
posted on 25 Feb 2025
I appeared for an interview before Feb 2024.
Estimate a civil engineering project.
I applied via Approached by Company and was interviewed before Apr 2023. There was 1 interview round.
JS fundamentals and coding question , OOPS
I applied via Naukri.com and was interviewed in Apr 2023. There were 4 interview rounds.
based on 1 review
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