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What is the difference between abstract class and interface?
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
A class can implement multiple interfaces, but can only extend one abstract class.
Abstract classes can have constructors, while interfaces cannot.
Interfaces are used to achieve multiple inheritance in Java.
Example: Abstract class - Animal, Interface -...
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I applied via LinkedIn and was interviewed before Dec 2020. There was 1 interview round.
C++ is an extension of C with object-oriented programming features.
C++ supports object-oriented programming while C does not.
C++ has classes and templates while C does not.
C++ has better support for function overloading and default arguments.
C++ has a standard library that includes many useful functions.
C++ allows for both procedural and object-oriented programming.
C++ is generally considered to be a more complex langu
I applied via Campus Placement and was interviewed before Sep 2021. There was 1 interview round.
I am a passionate software developer with 5 years of experience in developing web applications using various technologies.
5 years of experience in software development
Proficient in developing web applications
Skilled in using various technologies
Passionate about coding and problem-solving
Encapsulation is hiding implementation details while polymorphism is using a single interface for multiple types.
Encapsulation is achieved through access modifiers like private, protected, and public.
Polymorphism allows objects of different classes to be treated as if they are of the same class.
Encapsulation is about data hiding and abstraction while polymorphism is about behavior.
Example of encapsulation: a class with...
Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
Deadlock occurs when two or more processes are stuck in a circular waiting state.
It happens when processes compete for resources and each process holds a resource that another process needs.
Four necessary conditions for deadlock are mutual exclusion, hold and wait, no preemption, and ...
I appeared for an interview before Nov 2020.
Round duration - 90 minutes
Round difficulty - Medium
Timing was around 10am
It was quite a normal online examination kind of environment
People from the company were there to invigilate
All were quite nice and helpful in case the exam got stuck
An alien dropped its dictionary while visiting Earth. The Ninja wants to determine the order of characters used in the alien language, based on the given list of wor...
Determine the order of characters in an alien language based on a list of words.
Create a graph data structure to represent the relationships between characters in the words.
Perform a topological sort on the graph to find the order of characters.
Return the smallest lexicographical order of characters as the result.
Given an array of integers arr
of size N
and an integer K
, determine if there are any duplicate elements within a distance of K
from each other in the array. Return "true...
Check if there are any duplicate elements within a distance of K from each other in the array.
Iterate through the array and keep track of the indices of elements using a hashmap.
For each element, check if it already exists in the hashmap within distance K.
Return true if a duplicate is found within distance K, otherwise return false.
Round duration - 30 minutes
Round difficulty - Medium
Timing was 2pm when it started
Interviewer was polite
Ninja enjoys working with numbers, and Alice challenges him to find the Kth largest value from a given list of numbers.
The first line contains an integer 'T...
The task is to find the Kth largest element in a given list of numbers for each test case.
Read the number of test cases 'T'
For each test case, read the number of elements 'N' and the Kth largest number to find 'K'
Sort the array in descending order and output the Kth element
Round duration - 20 minutes
Round difficulty - Easy
Timing was 9 am onwards
Interviewer was good enough
Tip 1 : Focus on specialization of any one skill and keep a basic knowledge of all the skills you mention in your resume
Tip 2 : Gain confidence in presenting yourself by practicing well before
Tip 3 : Gain a basic knowledge of the company you go for selection
Tip 1 : Resume should be simple and precise but pretty smart to cover your skills
Tip 2 : Mention what you really know,no false things
As a software developer, my activity involves designing, coding, testing, and maintaining software applications.
Designing software architecture and user interfaces
Writing code in programming languages such as Java, Python, or C++
Testing software to ensure it meets requirements and is free of bugs
Maintaining and updating software to keep it running smoothly
Collaborating with other developers and stakeholders to ensure p
I applied via Campus Placement and was interviewed before Nov 2015. There were 5 interview rounds.
I appeared for an interview in Oct 2016.
Loop through the array and print only even indexed elements.
Use a for loop to iterate through the array.
Use the modulus operator to check if the index is even.
Print the element if the index is even.
Cloud computing is the delivery of computing services over the internet.
Cloud computing allows users to access data and applications from anywhere with an internet connection.
It eliminates the need for physical servers and hardware, reducing costs and increasing scalability.
Examples of cloud computing services include Amazon Web Services, Microsoft Azure, and Google Cloud Platform.
Linear regression is a statistical method used to model the relationship between two variables.
It involves finding the line of best fit that describes the relationship between the variables.
It is commonly used in predicting future values based on past data.
It assumes a linear relationship between the variables.
It can be used for both simple and multiple regression analysis.
Example: predicting the price of a house based
Clustering is a technique used to group similar data points together based on their characteristics.
Clustering is an unsupervised machine learning technique
It involves grouping data points based on their similarity
Common clustering algorithms include k-means, hierarchical clustering, and DBSCAN
Clustering is used in various fields such as marketing, biology, and image processing
Dynamic dispatch is a mechanism where the appropriate implementation of a method is selected at runtime based on the type of object.
Also known as runtime polymorphism or late binding
Used in object-oriented programming languages
Allows for more flexible and extensible code
Example: calling a method on a superclass reference that is overridden in a subclass will execute the subclass's implementation
I am a software developer with experience in Java and Python. I enjoy problem-solving and learning new technologies.
Experienced in Java and Python
Passionate about problem-solving
Quick learner of new technologies
I completed my schooling from XYZ School.
Attended XYZ School from grades 1-12
Participated in various extracurricular activities such as debate club and robotics team
Graduated with honors in 20XX
I tend to overthink and sometimes struggle with time management.
Overthinking can lead to analysis paralysis
I am working on improving my time management skills through prioritization and delegation
I am open to feedback and willing to learn from my mistakes
Yes, I am constantly overcoming challenges by staying up-to-date with new technologies and seeking help from colleagues.
Continuously learning new technologies and programming languages
Collaborating with colleagues to solve complex problems
Breaking down large tasks into smaller, manageable ones
Using online resources and forums to find solutions to problems
Attending conferences and workshops to stay current with industry
The company is a software development firm.
Provides custom software solutions to clients
Offers web and mobile app development services
Has a team of experienced developers
Works with various industries such as healthcare and finance
I'm sorry, I don't have that information.
N/A
I am excited to join this company because of its reputation for innovation and its commitment to employee growth and development.
I am impressed by the company's track record of developing cutting-edge software solutions.
I am excited about the opportunity to work with a talented team of developers and learn from their expertise.
I appreciate the company's focus on employee development and growth, and I am eager to take a...
Developed a web application that increased productivity by 30%
Designed and implemented a user-friendly interface
Optimized database queries for faster data retrieval
Implemented automated testing to ensure quality code
Collaborated with team members to meet project deadlines
I appeared for an interview before May 2016.
I am a passionate software developer with experience in building web applications using various technologies.
Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular
Proficient in backend development with Node.js and databases like MongoDB and MySQL
Familiar with version control systems like Git and deployment tools like Heroku
Strong problem-solving skills and ability
based on 1 interview
Interview experience
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