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Unicommerce Esolutions Java Developer Interview Questions and Answers

Updated 19 Oct 2023

Unicommerce Esolutions Java Developer Interview Experiences

1 interview found

Java Developer Interview Questions & Answers

user image Mandeep Saini

posted on 19 Oct 2023

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Sep 2023. There were 5 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 Resume tips
Round 2 - Coding Test 

3 tough coding questions but 1 day to complete them

Round 3 - Technical 

(1 Question)

  • Q1. No of islands (graph) CS Core Recursively reverse a linked list Projects Internship exp
Round 4 - Technical 

(1 Question)

  • Q1. Median of two sorted arrays Core Projects Internship Exp Puzzle
  • Ans. 

    The median of two sorted arrays can be found by merging the arrays and then calculating the median.

    • Merge the two sorted arrays into a single sorted array

    • Calculate the median of the merged array

    • Handle cases where the total number of elements is even or odd

  • Answered by AI
Round 5 - HR 

(1 Question)

  • Q1. Shit questions, no sense

Skills evaluated in this interview

Interview questions from similar companies

I applied via LinkedIn and was interviewed before Apr 2021. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. 1)Tell me about your self? 2)explain your profile/designation of the last company? 3)what are the type of sourcing? 4) Do you have knowledge about MS office? 5) Have you used MS Excel? What is V Lookup ?wh...

Interview Preparation Tips

Interview preparation tips for other job seekers - Please dont hesitate if your hand is not tight in english, always try to express your self in interview
Language doesn't matter at all

I applied via Internshala and was interviewed before Sep 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all Resume tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Only simple about myself questions as well as finance operations terms

Interview Preparation Tips

Interview preparation tips for other job seekers - Hojata hai aaram se but thoda dhyan rkhna ki stuck na ho beech m

I applied via Recruitment Consultant and was interviewed in May 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. What is diameter of Binary Tree? Write full working code.
  • Ans. 

    Diameter of a binary tree is the longest path between any two leaf nodes.

    • Calculate the height of left and right subtrees recursively.

    • Calculate the diameter recursively using the formula max(left_height + right_height + 1, max(left_diameter, right_diameter)).

    • Return the maximum diameter.

  • Answered by AI
  • Q2. Find interchanged terms from an AP, where terms are arranged in series
  • Ans. 

    To find interchanged terms from an AP series

    • Identify the common difference between terms

    • Swap the positions of adjacent terms

    • Check if the new series is also an AP

    • Repeat until no more interchanged terms can be found

  • Answered by AI
  • Q3. Explain database indexing
  • Ans. 

    Database indexing is a technique to improve the performance of database queries.

    • Indexing creates a data structure that allows for faster retrieval of data.

    • Indexes are created on one or more columns of a table.

    • Queries that use indexed columns can be executed faster.

    • Indexes can be clustered or non-clustered.

    • Clustered indexes determine the physical order of data in a table.

    • Non-clustered indexes create a separate structure...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well on basic data structures, operating systems and database.

Skills evaluated in this interview

I applied via Campus Placement and was interviewed before Dec 2020. There were 4 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Design a stack that support getmin in O(1) time and O(1) space complexities
  • Ans. 

    Design a stack that supports getmin in O(1) time and O(1) space complexities.

    • Use two stacks, one for storing the actual values and the other for storing the minimum values.

    • When pushing a new value, check if it is smaller than the current minimum value and push it to the minimum stack if it is.

    • When popping a value, check if it is the current minimum value and pop it from the minimum stack if it is.

    • To get the minimum val...

  • Answered by AI
  • Q2. Questions related OS and DBMS
  • Q3. Binary tree traversal
  • Ans. 

    Binary tree traversal is the process of visiting each node in a binary tree exactly once in a specific order.

    • There are three main types of binary tree traversal: inorder, preorder, and postorder.

    • Inorder traversal visits the left subtree, then the root, then the right subtree.

    • Preorder traversal visits the root, then the left subtree, then the right subtree.

    • Postorder traversal visits the left subtree, then the right subt...

  • Answered by AI
  • Q4. LRU cache explanation
  • Ans. 

    LRU cache is a data structure that stores the most recently used items and discards the least recently used items.

    • LRU stands for Least Recently Used

    • It has a fixed size and when the cache is full, the least recently used item is removed to make space for a new item

    • It uses a combination of a doubly linked list and a hash map to achieve O(1) time complexity for both insertion and deletion

    • Example: A web browser cache that ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Good with your programming skills and fundamentals.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Standard dsa questions, easy to medium

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Feb 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. System architecture
  • Q2. Dict ,list and other questions
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Jump Game - II
  • Q2. Number of Island
  • Ans. 

    Count the number of islands in a given grid of '1's and '0's.

    • Iterate through the grid and for each '1' encountered, perform a depth-first search to mark all connected '1's as visited.

    • Increment the island count for each new island encountered.

    • Consider edge cases like grid boundaries and handling visited cells.

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(2 Questions)

  • Q1. Tell what is your name
  • Ans. 

    My name is John Smith.

    • Full name is John Smith

    • Common name in English-speaking countries

    • No middle name or initial

  • Answered by AI
  • Q2. What do you do in free time
  • Ans. 

    In my free time, I enjoy hiking, playing video games, and learning new programming languages.

    • Hiking in local trails and national parks

    • Playing video games like Overwatch and Minecraft

    • Learning new programming languages like Python and JavaScript

  • Answered by AI
Round 1 - One-on-one 

(1 Question)

  • Q1. Tell me about your self Where do see your self in next 5 years What was your role in previous company

Interview Preparation Tips

Interview preparation tips for other job seekers - Be bold and answer correctly
Br is very friendly
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Unicommerce Esolutions Interview FAQs

How many rounds are there in Unicommerce Esolutions Java Developer interview?
Unicommerce Esolutions interview process usually has 5 rounds. The most common rounds in the Unicommerce Esolutions interview process are Technical, Resume Shortlist and Coding Test.
What are the top questions asked in Unicommerce Esolutions Java Developer interview?

Some of the top questions asked at the Unicommerce Esolutions Java Developer interview -

  1. median of two sorted arrays Core Projects Internship Exp Puz...read more
  2. no of islands (graph) CS Core Recursively reverse a linked list Projects Inte...read more
  3. Shit questions, no se...read more

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Unicommerce Esolutions Java Developer Interview Process

based on 1 interview

Interview experience

3
  
Average
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