Marolix Technology Solutions Android Developer Interview Questions and Answers

Object-oriented programming concepts with examples

• Encapsulation: Wrapping data and methods into a single unit. Example: Class Car with properties like make, model, and methods like start(), stop().

• Inheritance: Reusing code from existing classes. Example: Class SUV inheriting from Class Car.

• Polymorphism: Ability to take multiple forms. Example: Method overloading in Java.

• Abstraction: Hiding complex implementation detail...read more

Firebase notifications can be set up by integrating Firebase Cloud Messaging (FCM) into your Android app.

• Integrate Firebase SDK into your Android project

• Set up a Firebase project in the Firebase console

• Obtain the FCM server key and sender ID

• Implement the necessary code in your app to receive and handle notifications

Error responses should be handled gracefully to provide a good user experience.

• Identify the type of error (e.g. network error, server error, validation error)

• Display user-friendly error messages to explain the issue

• Provide options for users to retry, go back, or contact support

• Log errors for debugging and monitoring purposes