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Photon Interactive Java Developer Interview Questions and Answers

Updated 24 Apr 2024

Photon Interactive Java Developer Interview Experiences

2 interviews found

Interview experience
1
Bad
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
-

I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Normal Assessment test

Round 2 - Technical 

(1 Question)

  • Q1. May be the interviewer was expecting 200 years of experience from a 3.6 years Experienced person. So prepare accordingly.

Interview Preparation Tips

Interview preparation tips for other job seekers - Ask them for actual requirement for the particular opening.

Java Developer Interview Questions & Answers

user image Suraj Hanvate

posted on 24 Apr 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
No response
Round 1 - Technical 

(1 Question)

  • Q1. Stream API questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Try hands on Stream API

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Interview Preparation Tips

Round: Test
Experience: Apti was quite easy . In Basic CS concepts software engineering is prominent.
Tips: Brush up Software Engineering before written test
Duration: 90 minutes
Total Questions: 50

College Name: NIT BHOPAL

I was interviewed before Aug 2016.

Interview Preparation Tips

Round: General and technical aptitude
Experience: There were questions on basics of programming and general questions on verbal,reasoning and quantitative.
Tips: Time will be short to answer all so keep watch on time

Round: Group Discussion
Experience: They segregated us in to batches and in our team there were 10 members.
Tips: Easy round
Duration: 15 minutes

Round: Telephonic
Experience: They tested my communication skill in that round

College Name: Dhanalakshmi college of engineering

I was interviewed in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. Java questions...
  • Q2. Tell me about urself and about us family and all
  • Ans. 

    I am a software developer with a passion for coding and problem-solving. My family is supportive and has always encouraged my career in tech.

    • Experienced software developer

    • Passionate about coding and problem-solving

    • Supportive family that encourages my career in tech

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Easy questions are there
Duration: 1 hour
Total Questions: 90

Round: Group Discussion
Experience: 12 members are there only 9 got selected
Tips: Be confident in urself and specially work in Communication skills
Duration: 15 minutes

Round: Technical Interview
Experience: Asking all the concepts of Java like oops collections threads
Tips: Prepare well on Java

Round: HR Interview
Experience: Everything was Gud but due to my certificate problem I got rejected.. Otherwise everything is good.
Tips: Be confident

College Name: C. V. Raman College of Engineering

I was interviewed in Jul 2017.

Interview Questionnaire 

6 Questions

  • Q1. What is autoboxing and unboxing
  • Ans. 

    Autoboxing is the automatic conversion of primitive data types to their corresponding object wrapper classes.

    • Autoboxing is useful when working with collections that require objects instead of primitives.

    • Example: int i = 5; Integer j = i; //autoboxing

    • Unboxing is the opposite of autoboxing, where an object of a wrapper class is converted back to its corresponding primitive type.

    • Example: Integer j = 5; int i = j; //unboxi

  • Answered by AI
  • Q2. What is typecasting UP AND DOWN
  • Ans. 

    Typecasting up and down refers to converting a variable of one data type to another data type of higher or lower precision.

    • Typecasting up involves converting a variable of lower precision to a variable of higher precision, such as converting an int to a double.

    • Typecasting down involves converting a variable of higher precision to a variable of lower precision, such as converting a double to an int.

    • Typecasting can resul...

  • Answered by AI
  • Q3. How do you iterate map
  • Ans. 

    To iterate a map in Java, use a for-each loop or an iterator.

    • Use the entrySet() method to get a set of key-value pairs

    • For-each loop: for(Map.Entry entry : map.entrySet())

    • Iterator: Iterator> iterator = map.entrySet().iterator();

    • Use hasNext() and next() methods to iterate through the map

  • Answered by AI
  • Q4. Types of synchronisation in java
  • Ans. 

    Types of synchronization in Java

    • Synchronized methods

    • Synchronized statements

    • ReentrantLock

    • Semaphore

    • CountDownLatch

  • Answered by AI
  • Q5. Access modifiers in method overriding
  • Ans. 

    Access modifiers in method overriding

    • Access modifiers in the overriding method cannot be more restrictive than the overridden method

    • The access modifier can be less restrictive or the same as the overridden method

    • Private methods cannot be overridden

    • Examples: public method can be overridden by public or protected method, but not by private method

  • Answered by AI
  • Q6. Covarient return type

Skills evaluated in this interview

I was interviewed before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was an easy round which went really smooth.

  • Q1. 

    Nth Fibonacci Number Problem Statement

    Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows: F(n) = F(n-1) + F(n-2), with initial conditions F(1) = F(2) = 1.

    Input:

    ...
  • Ans. 

    Calculate the Nth Fibonacci number efficiently using dynamic programming.

    • Use dynamic programming to store previously calculated Fibonacci numbers to avoid redundant calculations.

    • Start with base cases F(1) and F(2) as 1, then iteratively calculate F(n) using F(n-1) and F(n-2).

    • Ensure the input N is within the constraints 1 <= N <= 10000.

    • Example: For N = 5, the 5th Fibonacci number is 5 (1, 1, 2, 3, 5).

  • Answered by AI
  • Q2. 

    Prime Numbers Problem Statement

    Given a positive integer N, your task is to determine and return all prime numbers less than or equal to N.

    Input:

    N = 10

    Output:

    2 3 5 7

    Example:

    Input:
    N = 20
    Out...
  • Ans. 

    Implement a function to return all prime numbers less than or equal to a given positive integer N.

    • Create a function that takes a positive integer N as input

    • Iterate from 2 to N and check if each number is prime

    • Use a helper function to determine if a number is prime

    • Return an array of all prime numbers less than or equal to N

  • Answered by AI
  • Q3. What is a merge join in SQL?
  • Ans. 

    A merge join in SQL is a method of combining two sorted datasets by matching corresponding rows based on a specified condition.

    • Merge join is used when joining two large datasets that are already sorted.

    • It is more efficient than other join methods like nested loop join or hash join for sorted datasets.

    • The join condition must be an equality condition.

    • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.i

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

The round went excellent. I really enjoyed it. Just be confident about whatever you answer

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Database, Basic C/C++, Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 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 was interviewed before Mar 2021.

Round 1 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This round went well. Interview depends on your basic knowledge of C/C++.

  • Q1. 

    Matrix Multiplication Task

    Given two sparse matrices MAT1 and MAT2 of integers with dimensions 'N' x 'M' and 'M' x 'P' respectively, the goal is to determine the resulting matrix produced by their multipl...

  • Ans. 

    Implement a function to multiply two sparse matrices and return the resulting matrix.

    • Create a function that takes two sparse matrices as input and returns the resulting matrix after multiplication

    • Iterate through the non-zero elements of the matrices to perform the multiplication efficiently

    • Handle the edge cases such as empty matrices or matrices with all zero elements

    • Ensure the dimensions of the matrices are compatible

  • Answered by AI
  • Q2. 

    Problem: Count Even or Odd in Array

    Tanmay and Rohit are best buddies. Tanmay gives Rohit a challenge involving an array of N natural numbers. The task is to perform and answer a series of queries on the ...

  • Ans. 

    Count the number of even or odd numbers in a range of an array based on given queries.

    • Create an array to store the input numbers.

    • Iterate through the queries and update or count even/odd numbers based on the query type.

    • Output the count of even or odd numbers for each query of type 1 or 2.

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 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 was interviewed in Jul 2017.

Interview Questionnaire 

1 Question

  • Q1. Android basics and programs

Interview Preparation Tips

Round: Resume Shortlist
Experience: Resume shortlisted on the basis of 60% through out and experience in development more than 6 months.

Round: Technical Interview
Experience: Core java.. String, oops, exception,

Round: HR Interview
Experience: As usual.. tell me about your self.expectations and salary discussion.
Tips: Be confident whatever you say.

I was interviewed in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. What is firmware and where it is used?
  • Ans. 

    Firmware is a type of software that is embedded in hardware devices to control their functionality.

    • Firmware is a combination of hardware and software.

    • It is used to control the behavior of hardware devices.

    • Firmware is typically stored in non-volatile memory, such as ROM or flash memory.

    • Examples of devices that use firmware include routers, printers, and digital cameras.

  • Answered by AI
  • Q2. Tell me about yourself only.
  • Ans. 

    I am a passionate software developer with experience in building web applications and solving complex problems.

    • Experienced in programming languages such as Java, JavaScript, and Python

    • Familiar with front-end technologies like HTML, CSS, and React

    • Strong problem-solving skills and ability to work in a team environment

    • Previous projects include developing a customer management system for a small business

  • Answered by AI

Interview Preparation Tips

Round: aptitude
Experience: the test had around 70 questions to be answered in 1 hour
Tips: keep watch on time and be quick enough because each sections has sectional cutoff.

Round: Technical Interview
Experience: the test had around 70 questions to be answered in 1 hour
Tips: keep watch on time and be quick enough because each sections has sectional cutoff.

Round: HR Interview
Experience: they tested my core knowledge and learning skill.
Tips: be strong in your basics.

Skills: Ability To Think Beyond Boundaries
College Name: mnm jec

Skills evaluated in this interview

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Photon Interactive Interview FAQs

How many rounds are there in Photon Interactive Java Developer interview?
Photon Interactive interview process usually has 1-2 rounds. The most common rounds in the Photon Interactive interview process are Technical and Coding Test.
How to prepare for Photon Interactive Java Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Photon Interactive. The most common topics and skills that interviewers at Photon Interactive expect are Java, Spring Boot, Microservices, Core Java and AWS.
What are the top questions asked in Photon Interactive Java Developer interview?

Some of the top questions asked at the Photon Interactive Java Developer interview -

  1. May be the interviewer was expecting 200 years of experience from a 3.6 years ...read more
  2. Stream API questi...read more

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Photon Interactive Java Developer Interview Process

based on 2 interviews

Interview experience

2.5
  
Poor
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Photon Interactive Java Developer Salary
based on 10 salaries
₹3.1 L/yr - ₹9.8 L/yr
6% more than the average Java Developer Salary in India
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Photon Interactive Java Developer Reviews and Ratings

based on 15 reviews

4.5/5

Rating in categories

4.4

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4.2

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4.4

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4.5

Job security

4.4

Company culture

4.3

Promotions

4.4

Work satisfaction

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