4 Freecharge Java Developer Interview Questions & Answers | Complete Prep Guide 2025

Freecharge Java Developer Interview Experiences

2 interviews found

Java Developer Interview Questions & Answers

Anonymous

posted on 14 May 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

Not Selected

I was interviewed in Apr 2024.

Round 1 - Technical

(1 Question)

Q1. 1. Merge Two Sorted Linked List. 2. String Pool, String Builder, String Buffer 3. Shallow Copy, Deep Copy. 4. Fail-Fast, Fail safe Iterator 5. Java 8 features you know 6. Stream related question 7. Basic J...

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Round 2 - Technical

(1 Question)

Q1. 1. Multithreading Concepts (Threads, Process, Thread Pool, etc) 2. coding questions -> T1 = Free and T2 = Charge: Print Free Charge using multithreading concept. 3. Basic Questions of Spring Boot(@RestCont...

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Java Developer Interview Questions & Answers

Anonymous

posted on 1 Dec 2023

Interview experience

Average

Difficulty level

Hard

Process Duration

Less than 2 weeks

Result

Not Selected

I applied via Company Website and was interviewed in Nov 2023. 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 Resume tips

Round 2 - Aptitude Test

Aptitude test based on English grammar

Round 3 - HR

(2 Questions)

Q1. Self introduction

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Q2. Basic questions in core Java

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Interview Preparation Tips

Topics to prepare for Freecharge Java Developer interview:

Java
Core Java
Java developer

Interview preparation tips for other job seekers - I am an fresher

Top trending discussions

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I recently joined a new company, I am not provided with an official laptop to work, have to carry my personal one. Also there is no PF (provident fund) deduction facility available although the company has 50 employees. Should I be worried?

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Software Developer Interview Questions & Answers

Paytm

Surpriya Arora

posted on 9 Sep 2015

Interview Questionnaire

21 Questions

Q1. Discussion of previous written test questions

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Q2. Find the odd repeating element from a set of repeating elements

Ans.

Find the odd repeating element from an array of strings

Use a hash table to count the frequency of each element
Iterate through the hash table to find the element with an odd count

Answered by AI

Add your answer

Q3. A 2D matrix is given which is row wise and column wise sorted. Find a particular element from it

Ans.

Finding an element in a sorted 2D matrix

Start from the top right corner or bottom left corner
Compare the target element with the current element
Move left or down if the target is smaller, else move right or up
Repeat until the target is found or all elements are checked

Answered by AI

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Q4. SQL Query to find Nth highest salary from table

Ans.

SQL query to find Nth highest salary from table

Use ORDER BY and LIMIT clauses
Use subquery to get the Nth highest salary
Handle cases where there are less than N distinct salaries

Answered by AI

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Q5. Another basic SQL query

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Q6. Write a function that returns '3' when '4' is passed as an input and vice versa without using if-else condition

Ans.

Function to swap '3' and '4' without using if-else

Use XOR operator to swap the values
Convert the input to ASCII code and perform the swap
Use a lookup table to map the values

Answered by AI

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Q7. Question on Suffix trees

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Q8. Question on Tries

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Q9. Question on Ternary search trees

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Q10. Question on hash maps

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Q11. Question on complexity of an algorithm

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Q12. 3-4 SQL queries

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Q13. Question on SQL joins

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Q14. JAVA questions on static block,static function and static variables

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Q15. JAVA questions on memory initialization and references

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Q16. Puzzle on measuring exactly half a glass of water

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Q17. Introduce yourself

Ans.

I am a software developer with experience in Java and Python.

Proficient in Java and Python programming languages
Experience in developing web applications using Spring framework
Familiarity with database management systems like MySQL and MongoDB

Answered by AI

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Q18. Why PAYTM?

Ans.

PAYTM is a leading digital payment platform in India with a wide range of services.

PAYTM has a user-friendly interface and offers a seamless payment experience.
It provides a variety of services like mobile recharges, bill payments, and online shopping.
PAYTM has a strong focus on security and fraud prevention measures.
It has a large user base and is widely accepted by merchants across India.
PAYTM is constantly innovatin...

Answered by AI

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Q19. Will you go for further studies?

Ans.

Yes, I am open to pursuing further studies in the future.

I believe in continuous learning and staying updated with the latest technologies.
Further studies can help me specialize in a particular field and enhance my skills.
I may consider pursuing a master's degree in computer science or a related field.
However, my immediate focus is on gaining practical experience and contributing to the organization.

Answered by AI

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Q20. Why do you think has PAYTM grown so fast?

Ans.

PAYTM grew fast due to its innovative approach and early adoption of digital payments.

Early adoption of digital payments in India
Innovative approach with features like mobile recharges, bill payments, and cashback offers
Expansion into e-commerce and financial services
Strategic partnerships with major companies like Uber and Alibaba

Answered by AI

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Q21. (looking at my CGPA of 9) You can get a better company. Then Why PAYTM only?

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Interview Preparation Tips

Round: Test
Experience: there were 20 mcqs and 2 coding questions. It was a pen and paper test. We were given 1 hour to solve it. The mcqs were of average difficulty. The 2 coding questions were:
1. A variation of the standard Josephus Problem
2. Find the 'x' largest elements from 'n' input elements without using sorting.
Tips: They focus on algorithms not on complete solutions. Do not leave any question unattempted. If you do not know the exact approach then use Brute-Force approach.

Round: Technical Interview
Experience: The Interviewer was very nice. He was focussing on the approach used not on codes.
Tips: Be calm and think by basics :)

Round: Technical Interview
Experience: The interviewer asked high level data structures in this round. But again he saw the approach used and not exact solution
Tips: Don't give up. Tell whatever you know

Round: Technical Interview
Experience: JAVA questions were based on very detailed concepts. Study OOP properly.
Tips: Maintain your calm :)

Round: HR Interview
Experience: Overall the experience was nice and smooth.
Tips: If they allow you to ask them any question then ask them something about the company. They should find you interested in the company :)

General Tips: Just be cool. Show them you are enthusiastic to learn and work. While prepration focus on Basics and Algorithms. Prepare DBMS nicely too :)
Skill Tips: Have full knowledge about your projects
Skills: JAVA, Data Structures, Operating systems, Network Programming, DBMS
College Name: NIT Jalandhar
Motivation: PAYTM is a perfect mix for the dynamic startup culture and stability of a big organiztaion. PAYTM has an amazing work culture and excellent opportunities for growth

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Paytm

MAYANK DEEP

posted on 25 Jan 2016

Interview Preparation Tips

Round: Test
Experience: There were 3 Questions . One on String manipulation and two were on Binary Trees. All were easy but there was time constraint.
Tips: Practice as many question as possible.
Duration: 60 minutes
Total Questions: 3

Round: Technical Interview
Experience: I was given the problem to design a car pooling system complete with the required classes .. data structures which would be used ... how the database would look like etc..
Tips: General understanding of databases and OOP concepts would do.

Round: Technical Interview
Tips: Be thorough and have in-depth knowledge of each and every point of your resume.

College Name: BITS Pilani

Software Developer Interview Questions & Answers

Paytm

Anonymous

posted on 10 May 2015

Interview Preparation Tips

Skills: Algorithm, Java, Data structure
College Name: na

Java Developer Interview Questions & Answers

HighRadius

Anonymous

posted on 6 Jun 2020

Interview Questionnaire

1 Question

Q1. Previous Project-related questions, Core java questions mainly on String, Exception, Collections. Java code for B tree, duplicates, and arrays.

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Software Developer Interview Questions & Answers

Paytm

Anonymous

posted on 14 Sep 2021

I was interviewed before Sep 2020.

Round 1 - Face to Face

Round duration - 45 minutes
Round difficulty - Medium

I applied thorough LinkedIn and got a call from HR for the interview.
I went to their Noida Office.
First round was mainly focused on Javascript fundamentals.
Interviewer was also friendly.

Round 2 - Face to Face

(2 Questions)

Round duration - 1 hour
Round difficulty - Medium

Second round was after 15 minutes of the first round. The focus of this round was DS & Algorithms.

Q1.

Find Subarray with Given Sum

Given an array ARR of N integers and an integer S, determine if there exists a subarray (of positive length) within the given array such that the sum of its elements equals S....

Ans.

Given an array and a target sum, find a subarray that sums up to the target sum.

Iterate through the array while keeping track of the running sum and the starting index of the subarray.
Use a hashmap to store the running sum and its corresponding index.
If the running sum - target sum is found in the hashmap, it means a subarray with the target sum exists.
Return the starting and ending indices of the subarray or [-1, -1]

Answered by AI

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Q2.

Minimum Number of Platforms Required

You are provided with two arrays, AT and DT, representing the arrival and departure times of all trains arriving at a railway station.

Your task is to determine the m...

Ans.

This question asks to find the minimum number of platforms required at a railway station so that no train needs to wait.

Sort the arrival and departure times arrays in ascending order.
Initialize a variable 'platforms' to 1 and 'maxPlatforms' to 1.
Iterate through the arrival and departure times arrays simultaneously.
If the current arrival time is less than or equal to the current departure time, increment 'platforms'.
If ...

Answered by AI

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Round 3 - Face to Face

(1 Question)

Round duration - 30 minutes
Round difficulty - Easy

Q1. What JavaScript questions did he ask you during the managerial round, and can you describe the work culture of his team?

Ans.

The interviewer asked about JavaScript questions and the work culture of the team during the managerial round.

JavaScript questions related to closures, prototypes, event handling, and asynchronous programming may have been asked.
Work culture may involve collaboration, innovation, agile methodologies, and continuous learning.
Examples of work culture could include regular team meetings, code reviews, hackathons, and ment

Answered by AI

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Round 4 - Face to Face

Round duration - 15 minutes
Round difficulty - Easy

Interview Preparation Tips

Professional and academic backgroundI applied for the job as SDE - 1 in NoidaEligibility criteriaI applied for Frontend role so Javascript was needed.Paytm (One97 Communications Limited) interview preparation:Topics to prepare for the interview - JavaScript,React.js,Java,Node.js,DS & Algo,Time required to prepare for the interview - 1 monthInterview preparation tips for other job seekers

Tip 1 : Be strong at your basics.
Tip 2 : Don't hesitate to ask questions to interviewer.
Tip 3 : Prepare good for DS & Algo as most companies have a separate round for it.

Application resume tips for other job seekers

Tip 1: If possible make 1 page resume
Tip 2: Don't put too many things. Keep it simple. If you're a fresher and have good projects, do put them before your academic section.
Tip 3: Be ready to explain everything you have in your resume.

Final outcome of the interviewSelected

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Paytm

Mohit Gupta

posted on 24 Feb 2017

I was interviewed in Dec 2017.

Interview Questionnaire

3 Questions

Q1. You need to find the maximum water pond formed in bw the building

Ans.

To find the maximum water pond formed between buildings.

Identify the lowest point between the buildings.
Calculate the area of the pond using the distance between the buildings and the depth of the pond.
Consider any obstacles or uneven ground that may affect the pond's shape.
Use a surveying tool or satellite imagery to get accurate measurements.
Take into account any drainage systems or natural water flow that may affect

Answered by AI

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Q2. On mars you have to place n robots and they are connected via GPS. now you need to move each robot such that the whole mars is visited and each robot visit the minimum area(meaning no overlapping of area)...

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Q3. Design dictionary using trie....having operations of inserting a word, updating and deleting (needed to write full running code)

Ans.

Design a dictionary using trie with insert, update and delete operations.

Implement a Trie data structure with nodes containing a character and a boolean flag to indicate end of word
For insert operation, traverse the trie and add nodes for each character in the word
For update operation, delete the existing word and insert the updated word
For delete operation, mark the end of word flag as false and delete the node if it ...

Answered by AI

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Interview Preparation Tips

Round: Test
Experience: Simple questions
Duration: 1 hour 10 minutes
Total Questions: 3

College Name: IIT Guwahati

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Jio Money

Anonymous

posted on 19 Nov 2024

Interview experience

Excellent

Difficulty level

Easy

Process Duration

Less than 2 weeks

Result

Selected

I applied via Instahyre and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Coding Test

Basic Nodejs questions

Round 2 - Technical

(2 Questions)

Q1. Live peer coding interview

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Q2. Fundamental of JS and clean code architecture

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Round 3 - HR

(2 Questions)

Q1. Salary expectation

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Q2. Joining date and

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Interview Preparation Tips

Interview preparation tips for other job seekers - Experience was good

Software Developer Interview Questions & Answers

Mobikwik

Parul Mishra

posted on 26 Sep 2024

Interview experience

Excellent

Difficulty level

Moderate

Process Duration

4-6 weeks

Result

Selected

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

Round 1 - Technical

(1 Question)

Q1. Project discussion

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Freecharge Interview FAQs

How many rounds are there in Freecharge Java Developer interview?

Freecharge interview process usually has 2-3 rounds. The most common rounds in the Freecharge interview process are Technical, Resume Shortlist and Aptitude Test.

What are the top questions asked in Freecharge Java Developer interview?

Some of the top questions asked at the Freecharge Java Developer interview -

1. Multithreading Concepts (Threads, Process, Thread Pool, etc) 2. coding quest...read more
1. Merge Two Sorted Linked List. 2. String Pool, String Builder, String Buffer ...read more
Basic questions in core J...read more

Software Development Engineer 123 salaries	₹0 L/yr - ₹0 L/yr
Lead Software Engineer 77 salaries	₹0 L/yr - ₹0 L/yr
Software Developer 57 salaries	₹0 L/yr - ₹0 L/yr
Senior Software Engineer 53 salaries	₹0 L/yr - ₹0 L/yr
Associate Product Manager 51 salaries	₹0 L/yr - ₹0 L/yr

Freecharge Java Developer Interview Questions and Answers

Freecharge Java Developer Interview Experiences

2 interviews found

(1 Question)

(1 Question)

(2 Questions)

Interview Preparation Tips

Java Developer Interview Questions Asked at Other Companies

Interview questions from similar companies

Interview Questionnaire

21 Questions

Interview Preparation Tips

Skills evaluated in this interview

Interview Preparation Tips

Interview Preparation Tips

Interview Questionnaire

1 Question

(2 Questions)

Find Subarray with Given Sum

Minimum Number of Platforms Required

(1 Question)

Interview Preparation Tips

Skills evaluated in this interview

Interview Questionnaire

3 Questions

Interview Preparation Tips

Skills evaluated in this interview

(2 Questions)

(2 Questions)

Interview Preparation Tips

(1 Question)

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