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Trantor Senior Android Developer Interview Questions and Answers

Updated 18 Apr 2024

Trantor Senior Android Developer Interview Experiences

1 interview found

Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I appeared for an interview in Mar 2024.

Round 1 - Technical 

(4 Questions)

  • Q1. Given Kotlin extension function what could be the output.
  • Ans. 

    Kotlin extension functions allow adding new functions to existing classes without modifying their source code.

    • Extension functions are defined outside the class they extend.

    • They can be called on the object of the class they extend.

    • They can access the properties and functions of the class they extend.

  • Answered by AI
  • Q2. What is higher order function.
  • Ans. 

    A higher order function is a function that can take other functions as parameters or return functions as results.

    • Higher order functions can be used to create more flexible and reusable code.

    • They can be used to implement callbacks, event handling, and functional programming concepts.

    • Example: map, filter, and reduce functions in JavaScript are higher order functions.

  • Answered by AI
  • Q3. Explain Activity lifecycle methods.
  • Ans. 

    Activity lifecycle methods are a set of methods that are called at different stages of an activity's life cycle.

    • onCreate() - called when the activity is first created

    • onStart() - called when the activity is becoming visible to the user

    • onResume() - called when the activity will start interacting with the user

    • onPause() - called when the activity is going into the background, but still visible

    • onStop() - called when the act...

  • Answered by AI
  • Q4. What is fragment and uses.
  • Ans. 

    Fragments are modular sections of an activity's user interface, allowing for more flexible and dynamic UI designs.

    • Fragments can be reused across multiple activities

    • They help in creating responsive UIs for different screen sizes

    • Fragments can be added or removed dynamically during runtime

    • They are useful for implementing multi-pane layouts on tablets

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview person is less experienced for taking interview.

Skills evaluated in this interview

Top trending discussions

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Interview Tips & Stories
1w (edited)
a team lead
Why are women still asked such personal questions in interview?
I recently went for an interview… and honestly, m still trying to process what just happened. Instead of being asked about my skills, experience, or how I could add value to the company… the questions took a totally unexpected turn. The interviewer started asking things like When are you getting married? Are you engaged? And m sure, if I had said I was married, the next question would’ve been How long have you been married? What does my personal life have to do with the job m applying for? This is where I felt the gender discrimination hit hard. These types of questions are so casually thrown at women during interviews but are they ever asked to men? No one asks male candidates if they’re planning a wedding or how old their kids are. So why is it okay to ask women? Can we please stop normalising this kind of behaviour in interviews? Our careers shouldn’t be judged by our relationship status. Period.
Got a question about Trantor?
Ask anonymously on communities.

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I appeared for an interview before Mar 2021.

Round 1 - Coding Test 

Round duration - 30 minutes
Round difficulty - Medium

This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.

Round 2 - Coding Test 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Medium

In this test round, 2 coding questions were given. Either write the code or pseudo code

  • Q1. 

    N Queens Problem

    Given an integer N, find all possible placements of N queens on an N x N chessboard such that no two queens threaten each other.

    Explanation:

    A queen can attack another queen if they ar...

  • Ans. 

    The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.

    • Use backtracking algorithm to explore all possible configurations.

    • Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.

    • Generate all valid configurations and print them out.

  • Answered by AI
  • Q2. 

    Sort 0 1 2 Problem Statement

    Given an integer array arr of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.

    Input:

    The first line contains an integer 'T' representing the n...
  • Ans. 

    Sort an array of 0s, 1s, and 2s in linear time complexity.

    • Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.

    • Swap elements based on the values encountered to sort the array in-place.

    • Time complexity should be O(N) and space complexity should be O(1).

  • Answered by AI
Round 3 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DSA.

  • Q1. 

    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, and multiple spaces.

    • Split the input string by spaces to get individual words

    • Reverse the order of the words

    • Join the reversed words with a single space in between

  • Answered by AI
  • Q2. 

    Circular Linked List Detection

    You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.

    Note:
    • A linked list is considered circula...
  • Ans. 

    Detect if a given linked list is circular by checking if it forms a closed loop.

    • Traverse the linked list using two pointers, one moving at double the speed of the other.

    • If the two pointers meet at any point, the linked list is circular.

    • If the faster pointer reaches the end of the list (NULL), the linked list is not circular.

  • Answered by AI
Round 4 - HR 

Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAMAQ Software interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 5 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

Senior Android Developer Interview Questions Asked at Other Companies

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asked in JioStar
Q4. How would you design an app with a configurable UI where the UI c ... read more
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Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Aug 2023. There were 3 interview rounds.

Round 1 - Coding Test 

In 1st round they will provide a pattern question which you need to solve in 1 hour

Round 2 - Coding Test 

Second round as well a coding test, which is a hard level of pattern coding test which you need to solve with in 45 minutes.

Round 3 - Technical 

(3 Questions)

  • Q1. What is arrow function, write code to create a table (table structure will be provided).
  • Ans. 

    Arrow functions are a concise way to write functions in JavaScript.

    • Arrow functions are written using the '=>' syntax.

    • They do not have their own 'this' keyword.

    • They are best suited for non-method functions.

    • Example: const add = (a, b) => a + b;

  • Answered by AI
  • Q2. Git commands, what are the steps to commit and push code in git.
  • Ans. 

    To commit and push code in Git, you need to stage changes, commit them, and then push to the remote repository.

    • Stage changes using 'git add ' or 'git add .' to add all changes

    • Commit changes using 'git commit -m 'commit message''

    • Push changes to remote repository using 'git push'

  • Answered by AI
  • Q3. Mathematics questions and many more.

Interview Preparation Tips

Interview preparation tips for other job seekers - In last 2 years i had given lots of interviews, but the mistakes what i did that is 'Not focusing in conceptual part which are generaly asked in technical interview so it is must to prepare theoretical concepts of the programming language with coding logic.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Mar 2024, where I was asked the following questions.

  • Q1. Pattern question
  • Q2. Good project knowledge
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I appeared for an interview in Jan 2025.

Round 1 - Coding Test 

Like pattern question

Round 2 - Assignment 

2 basic project for creating and make project

Round 3 - One-on-one 

(2 Questions)

  • Q1. How to flow your code
  • Ans. 

    Flowing code involves organizing and structuring code in a logical and readable manner.

    • Break down the code into smaller functions or modules

    • Use meaningful variable and function names

    • Follow a consistent coding style and indentation

    • Comment code to explain complex logic

    • Use version control to track changes and collaborate with others

  • Answered by AI
  • Q2. What is the unique functionality in your project.
  • Ans. 

    Our project includes a unique functionality that allows users to customize their own user interface themes.

    • Users can choose from a variety of color schemes and layouts to personalize their experience.

    • The customization options are saved for each user, so they can easily switch between themes.

    • This feature enhances user satisfaction and engagement with the software.

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. Discuss about salary, work culture, politics also
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in May 2025, where I was asked the following questions.

  • Q1. What languages did you know
  • Ans. 

    I am proficient in several programming languages, each suited for different tasks and projects.

    • JavaScript: Used for web development, creating interactive front-end applications.

    • Python: Great for data analysis, machine learning, and scripting tasks.

    • Java: Commonly used for building enterprise-level applications and Android development.

    • C#: Utilized for developing Windows applications and game development with Unity.

    • SQL: E...

  • Answered by AI
  • Q2. What are they
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
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 

It was basic test. online.

Round 3 - Coding Test 

2 questions on arrays. online.

Round 4 - Group Discussion 

The general topic. Be point to point

Round 5 - Technical 

(1 Question)

  • Q1. SQL and Python questions. online. screen sharing
Are these interview questions helpful?

I applied via Telegram and was interviewed in Dec 2021. There were 4 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 

Was taken on firefox Brower and was easy

Round 3 - Coding Test 

Very basic questions like swap numbers etc

Round 4 - Technical 

(3 Questions)

  • Q1. Basic questions on cpp
  • Q2. Opps concept like encapsulation etc
  • Q3. Write a code to reverse a string
  • Ans. 

    Code to reverse a string

    • Create an empty string to store the reversed string

    • Loop through the original string from end to start

    • Append each character to the empty string

    • Return the reversed string

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interviewer was not held on time, There was very long waiting time.
Was very rude to talk to and didn't communicate well enough.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Jan 2024. There were 3 interview rounds.

Round 1 - Coding Test 

They want you to solve pattern questions

Round 2 - Coding Test 

Same complex patterns then first round

Round 3 - Technical 

(1 Question)

  • Q1. Basics of html sql, linear equations

Interview Preparation Tips

Interview preparation tips for other job seekers - Just focus on patterns and you are good to go
Round 1 - Coding Test 

Work well on loops and you will do well enough in the interview.

Round 2 - Coding Test 

It was good

Round 3 - Technical 

(1 Question)

  • Q1. Some devs will ask questions
Round 4 - Assignment 

Salary discusiion

Interview Preparation Tips

Interview preparation tips for other job seekers - Very nice interview you will crack it

Trantor Interview FAQs

How many rounds are there in Trantor Senior Android Developer interview?
Trantor interview process usually has 1 rounds. The most common rounds in the Trantor interview process are Technical.
How to prepare for Trantor Senior Android 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 Trantor. The most common topics and skills that interviewers at Trantor expect are Android, Android SDK, C#, CSS and Design Patterns.
What are the top questions asked in Trantor Senior Android Developer interview?

Some of the top questions asked at the Trantor Senior Android Developer interview -

  1. Given Kotlin extension function what could be the outp...read more
  2. What is higher order functi...read more
  3. What is fragment and us...read more

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Overall Interview Experience Rating

3/5

based on 1 interview experience

Difficulty level

Easy 100%

Duration

Less than 2 weeks 100%
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5.0/5

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5.0

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