Mobile Development Questions in Interviews

Last updated: June 2, 2026

Overview 

HackerRank interviews empower you to assess the mobile development (Android Java and Kotlin or React Native) skills of a candidate during interviews. A built-in emulator is provided inside the IDE for the interviewers and candidates to build and see their code in real-time. This article will walk you through the steps to use Mobile Developer questions in a HackerRank Interview.

Prerequisites

  • You must have scheduled a HackerRank interview, either by Quick pad or Scheduled Interview.

Steps to Import from Library

As of now, you can conduct the Mobile Developer interviews using two methods:

  1. Starting a project from scratch: This starts a new Android or React Native interview with a boilerplate code.

  2. Importing a project: You can import a project from a public Git URL or upload a zip file from your local system of size up to 5MB. 

Start from Scratch

  • Inside the interviews landing page, you can find the Mobile Development frameworks. Click on the desired tile from the available options: 

    • Android Java 

    • Android Kotlin 

    • React Native 

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  • Select Start from Scratch on the next page.

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  • This will launch the IDE with a basic code. You can further build on it based on your requirement.

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  • You can check your progress while writing the code on the preview window placed on the left side of the interview screen. 

Import your Own Project 

  • To launch your own project you need to select the Import your Own Project option after selecting the framework.  

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  • On the following page, you will be given two options.

    • Import from a public Git URL

    • Upload a Zip file as a source (Maximum file size allowed is up to 5MB) 

  • After proceeding with your desired choice give the project a name and click on Validate and Continue.    

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  • After validating the project IDE will be launched where you can build your application further.  

  • Upon successful uploading, the project will be saved in interviews, and you can find it in the Recently Used tab.