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Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Features of OOP include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation allows objects to hide their internal state and require all interaction to be performed through an object's methods.
Inheritance allows classes to inherit attributes and methods from other classes.
Polymorphis...
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
To retrieve a value, the key is hashed again to fi...
I applied via Naukri.com and was interviewed in Jan 2022. There was 1 interview round.
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It was basic aptitue
I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
Duration 1 hour, topics general aptitude and sql related questions
Answering interview questions for a Software Developer position.
Introduce yourself, highlighting your relevant experience and skills.
Explain your passion for software development and any notable projects you've worked on.
Provide a brief overview of your technical skills and programming languages you're proficient in.
Discuss your problem-solving abilities and ability to work in a team.
Mention your familiarity with Agile...
I applied via Job Portal and was interviewed in Sep 2023. There were 3 interview rounds.
Normal verbal, logical question
I applied via Recruitment Consulltant and was interviewed in Apr 2024. There was 1 interview round.
Oops concept refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class. Example: Parent class 'Animal' and child class 'Dog'.
Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class 'Car' with private variables and public methods.
Polymorphism...
There was 10 question
Arrays are a collection of elements of the same data type, while strings are a sequence of characters.
Arrays can store multiple values in a single variable, accessed by index.
Strings are a special type of array that store sequences of characters.
Example: Array - [1, 2, 3], String - 'hello world'
Code to check if a number is prime or not
Use a loop to check if the number is divisible by any number other than 1 and itself
If the number is only divisible by 1 and itself, it is a prime number
Example: Check if 7 is prime - loop from 2 to 6, no number divides 7 evenly
I applied via Walk-in and was interviewed before Nov 2023. There was 1 interview round.
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