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Ensono Java Developer Interview Questions and Answers

Updated 19 Oct 2023

Ensono Java Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Job Fair and was interviewed before Oct 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Aptitude questions 25were asked

Round 3 - Coding Test 

Code snippets based questions were asked

Interview Preparation Tips

Topics to prepare for Ensono Java Developer interview:
  • Java dsa

Interview questions from similar companies

I appeared for an interview before Mar 2021.

Round 1 - Coding Test 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

21 students were shortlisted from the 1st MCQ round and in this round we were asked to write the codes (function only) of 3 questions in 1 hour time.

  • Q1. 

    Rotting Oranges Problem Statement

    You are given a grid containing oranges where each cell of the grid can contain one of the three integer values:

    • 0 - representing an empty cell
    • 1 - representing a fre...
  • Ans. 

    Find the minimum time required to rot all fresh oranges in a grid.

    • Use Breadth First Search (BFS) to simulate the rotting process

    • Track the time taken to rot all oranges and return -1 if any fresh oranges remain

    • Handle edge cases like no fresh oranges or all oranges already rotten

    • Consider using a queue to efficiently process adjacent oranges

  • Answered by AI
  • Q2. 

    Majority Element Problem Statement

    Given an array/list 'ARR' consisting of 'N' integers, your task is to find the majority element in the array. If there is no majority element present, return -1.

    Exampl...

  • Ans. 

    Find the majority element in an array, return -1 if no majority element exists.

    • Iterate through the array and keep track of the count of each element using a hashmap.

    • Check if any element's count is greater than floor(N/2) to determine the majority element.

    • Return the majority element or -1 if no majority element exists.

  • Answered by AI
  • Q3. 

    Maximum Path Sum Between Two Leaves Problem Description

    You are provided with a non-empty binary tree in which each node contains a non-negative integer value. Your task is to find and return the maximum ...

  • Ans. 

    Find the maximum path sum between two leaf nodes in a binary tree.

    • Traverse the tree to find the maximum path sum between two leaf nodes.

    • Keep track of the maximum sum found so far.

    • Consider all possible paths between leaf nodes.

    • Handle cases where the tree has only a single leaf node.

    • Implement a recursive function to calculate the maximum path sum.

  • Answered by AI
Round 2 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

This was a technical round with DSA based questions.

  • Q1. 

    N-th Node From The End Problem Statement

    You are given a Singly Linked List of integers. The task is to find the N-th node from the end of the list.

    Example:

    Input:
    If the given list is (1 -> -2 -&g...
  • Ans. 

    Find the N-th node from the end of a Singly Linked List of integers.

    • Traverse the list to find the length L of the list.

    • Calculate the position of the N-th node from the beginning as L - N + 1.

    • Traverse the list again to reach the calculated position and return the node's value.

  • Answered by AI
  • Q2. 

    LCA of Binary Tree Problem Statement

    You are given a binary tree consisting of distinct integers and two nodes, X and Y. Your task is to find and return the Lowest Common Ancestor (LCA) of these two nodes...

  • Ans. 

    Find the Lowest Common Ancestor (LCA) of two nodes in a binary tree.

    • Traverse the binary tree to find the paths from the root to nodes X and Y.

    • Compare the paths to find the last common node, which is the LCA.

    • Handle cases where one node is an ancestor of the other or when one node is the LCA itself.

  • Answered by AI
  • Q3. 

    Reverse Words in a String: Problem Statement

    You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...

  • Ans. 

    Reverse words in a string while handling leading/trailing spaces and multiple spaces between words.

    • Split the input string by spaces to get individual words

    • Reverse the list of words

    • Join the reversed words with a single space in between

    • Handle leading/trailing spaces by stripping them before and after reversing

  • Answered by AI
Round 3 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions based on DSA

  • Q1. 

    Minimum Time To Solve The Problems

    Given 'N' subjects, each containing a certain number of problems, and 'K' friends, assign subjects to friends such that each subject goes to exactly one friend, maintain...

  • Ans. 

    Assign subjects to friends to minimize maximum workload, find minimum time for most loaded friend.

    • Sort subjects in descending order

    • Assign subjects to friends one by one until all subjects are assigned

    • The maximum workload will be the sum of problems assigned to the friend with the most problems

    • Return the maximum workload as the minimum time required

  • Answered by AI
  • Q2. What is grammar in the context of compiler design?
  • Ans. 

    Grammar in compiler design defines the syntax and structure of a programming language.

    • Grammar specifies the rules for forming valid statements in a programming language.

    • It consists of a set of production rules that define how valid programs can be constructed.

    • There are different types of grammars such as context-free grammar, regular grammar, etc.

    • Example: In C programming language, the grammar specifies that a for loop...

  • Answered by AI
  • Q3. What is a token in compiler design?
  • Ans. 

    A token in compiler design is a basic unit of syntax that the compiler can understand and process.

    • Tokens are the smallest units of a program that are meaningful to the compiler.

    • Examples of tokens include keywords, identifiers, operators, and punctuation symbols.

    • Tokens are generated by the lexical analysis phase of the compiler.

    • Tokens are used by the parser to build the abstract syntax tree of the program.

  • Answered by AI
Round 4 - Video Call 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on DSA and Compiler Design mainly. He told me that you’ll be having your final HR round in some time. I knew that I was going well because he seemed to be quite satisfied with my answers.

  • Q1. 

    Sum Root to Leaf Numbers

    You are given an arbitrary binary tree consisting of N nodes, each associated with an integer value from 1 to 9. Each root-to-leaf path can be considered a number formed by concat...

  • Ans. 

    Find the total sum of all root to leaf paths in a binary tree formed by concatenating node values.

    • Traverse the binary tree from root to leaf nodes, keeping track of the current path sum

    • Add the current path sum to the total sum when reaching a leaf node

    • Use modulo (10^9 + 7) to handle large outputs

  • Answered by AI
  • Q2. What is a regular language?
  • Ans. 

    A regular language is a language that can be recognized by a finite automaton.

    • Regular languages can be described by regular expressions.

    • Regular languages are closed under union, concatenation, and Kleene star operations.

    • Examples of regular languages include the set of all strings over an alphabet that contain an even number of 'a's.

  • Answered by AI
  • Q3. What are NP and NP-Hard problems?
  • Ans. 

    NP problems are decision problems that can be verified in polynomial time, while NP-Hard problems are at least as hard as the hardest problems in NP.

    • NP problems can be verified in polynomial time but not necessarily solved in polynomial time.

    • NP-Hard problems are at least as hard as the hardest problems in NP, but may not be in NP themselves.

    • Examples of NP problems include the subset sum problem and the traveling salesm...

  • Answered by AI
Round 5 - HR 

Round duration - 30 minutes
Round difficulty - Easy

That was the round for which I’ve been waiting for hours 
She was very friendly and nice to talk to. It didn’t seem that I was talking to the HR. It was more like talking to a friend. Finally we discussed about the pay-scale and work culture in Accolite.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAAccolite Digital Pvt Ltd interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

I applied via Walk-in and was interviewed before Nov 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. A few terms related to mutual fund industry were asked.
  • Q2. What do you understand by market capitalisation?
  • Ans. 

    Market capitalisation is the total value of a company's outstanding shares.

    • Market cap is calculated by multiplying the current stock price by the total number of outstanding shares.

    • It is used to determine the size of a company and its overall worth.

    • Companies with higher market caps are generally considered more stable and less risky investments.

    • For example, Apple Inc. has a market cap of over $2 trillion as of 2021.

    • Mar...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be calm, confident and honest.

I applied via Approached by Company and was interviewed in May 2018. There were 5 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. They asked me along with other developers to wait in the sun at 40*C to get gate pass for nearly 30 minutes. Then after waiting for nearly 2 hours and 30 minutes more hours I asked an idiot (Ashutosh Singh...
  • Q2. For sitting idle there for 3 hours and 30 minutes I decided to leave the company as I don't wanted to be part of such an agile (Agile ? Hahahaha) team. After 1 more hour I received a call from them asking ...

Interview Preparation Tips

Round: Resume Shortlist
Experience: From Naukri.com and then talked on phone.

General Tips: If you want to make the hell of a day of your life, go to Iris Software for the interview.
Skills: Communication, Time Management, Decision Making Skills
Duration: <1 week

Interview Questionnaire 

1 Question

  • Q1. Richardson maturity model

I applied via Referral and was interviewed in Jul 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Why do you want to join Incedo, what is your plan in future, explain your past experience with an example
  • Q2. Basic of capital market
  • Q3. Market capitalisation, capital market, derivatives, accounting knowledge

Interview Preparation Tips

Interview preparation tips for other job seekers - One should be more confident and should give prompt response
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Explain dependency injection, indexes in sql, SOLID principles.
  • Ans. 

    Dependency injection is a design pattern where dependencies are injected into a class rather than created within the class itself.

    • Dependency injection helps in achieving loose coupling between classes.

    • It allows for easier testing and maintenance of code.

    • Example: Constructor injection, setter injection, and interface injection are common types of dependency injection.

    • Indexes in SQL are used to improve the performance of...

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Job Fair and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Java 8 features
  • Q2. Junit code writing
Round 2 - HR 

(2 Questions)

  • Q1. Reason for job change
  • Ans. 

    Seeking new challenges and growth opportunities in a dynamic environment.

    • Desire for professional growth

    • Seeking new challenges

    • Interested in a more dynamic work environment

  • Answered by AI
  • Q2. Past experience
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Job Portal and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. SOLID principles
  • Q2. Microservice Architecture and Kafka

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared with core concepts.
Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is java and its features ?
  • Ans. 

    Java is a high-level programming language known for its platform independence and object-oriented features.

    • Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

    • It is object-oriented, allowing for the creation of reusable code and modular programs

    • Java is known for its robust standard library, providing a wide range of pre-built functionality

    • It supports multithreading, allowing ...

  • Answered by AI
  • Q2. What is java 8 and features
  • Ans. 

    Java 8 is a major release of the Java programming language with new features like lambda expressions, streams, and default methods.

    • Lambda expressions allow you to treat functionality as a method argument.

    • Streams provide a new abstraction to work with sequences of elements.

    • Default methods allow interfaces to have method implementations.

    • Date and Time API provides a new way to work with dates and times.

    • Optional class help

  • Answered by AI

Skills evaluated in this interview

Ensono Interview FAQs

How many rounds are there in Ensono Java Developer interview?
Ensono interview process usually has 3 rounds. The most common rounds in the Ensono interview process are Resume Shortlist, Aptitude Test and Coding Test.

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Ensono Java Developer Interview Process

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5.0

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4.0

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