Accelya Solutions India Limited Engineer 1 Interview Questions and Answers

Q1. Explain OOPS concept and how you apply it in your implementation
Ans. 
OOPS is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPS focuses on the concept of classes and objects

• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for diffe...read more
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Q2. Difference between Comparable and Comparator. Difference between Abstract Class and Interface
Ans. 
Comparable is an interface used for natural ordering, Comparator is an interface used for custom ordering. Abstract class can have method implementations, Interface cannot.
• Comparable interface is used to define the natural ordering of objects. Example: String class implements Comparable interface for natural ordering based on alphabetical order.

• Comparator interface is used to define custom ordering of objects. Example:...read more
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Q3. Given a string. Find the number of occurrences of each character
Ans. 
Count occurrences of each character in a given string
• Create an array to store the count of each character

• Iterate through the string and increment the count of each character in the array

• Return the array with counts for each character
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Q4. Given an array. Remove the number of duplicates
Ans. 
Remove duplicates from an array of strings
• Iterate through the array and store each element in a set to keep track of unique values

• Create a new array with the unique values from the set
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Q5. Given a student object having name and grade data variables. Sort the object on the basis of highest grade.
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Karat Interview for next filtering the candidate

Q1. Design Snake Game (Nokia based)
Ans. 
Design a classic Snake game based on Nokia phones.
• Use a 2D array to represent the game board.

• Implement logic for snake movement and growth.

• Include collision detection with walls and itself.

• Add food items for the snake to eat and grow.

• Display the game on a grid-based interface.
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Q2. Ballot based voter
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The topic given to me is AI is good or bad

Q1. Program to find prime number
Ans. 
A program to find prime numbers in a given range.
• Iterate through numbers in the given range

• Check if each number is divisible by any number other than 1 and itself

• If not divisible, then the number is prime
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Q2. Program to find the duplicates
Ans. 
Program to find duplicates in an array of strings
• Iterate through the array and store each element in a hash set

• If an element is already in the hash set, it is a duplicate

• Return a list of all duplicates found
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Q1. Self introduction
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Q2. Explanation of project code
Ans. 
The project code is a web application that allows users to create and share interactive quizzes.
• The code uses HTML, CSS, and JavaScript to create the front-end interface.

• It utilizes Node.js and Express for the back-end server.

• MongoDB is used as the database to store user-generated quizzes.

• Socket.io is used for real-time communication between users during quiz sessions.
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4 questions of coding, level - easy and medium

Q1. Asp.net mvc , sql server etc
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Q1. Managerial round, .net and sql server related questions
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Q1. Salary negotiation
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Q1. Problem solving question
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Q2. Java , stream , Spring fundamentals
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Q1. Some basic String array problem solving question
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Q2. Java questions like junit , Spring boot
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Q1. String questions , DSA problem
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Q2. Java questions in brief
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Based on os , linux , nutanix

Q1. Related to networking
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Q2. What is dns , NET , Scenario based questions
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Q1. Questions regarding DSA and java
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Q2. Find if Linked list is circular
Ans. 
Check if a linked list is circular by using two pointers moving at different speeds.
• Initialize two pointers, slow and fast, both pointing to the head of the linked list.

• Move slow pointer by one node and fast pointer by two nodes in each iteration.

• If the fast pointer reaches the end of the list or meets the slow pointer, the list is circular.
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Q1. One more round on DSA on stack queues and trees
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