HARMAN Interview Questions, Process, and Tips

Q1. What is Android Framework?
Ans. 
Android Framework is a set of APIs and tools provided by Android to develop applications for Android devices.
• It provides a set of pre-built components for building mobile applications.

• It includes libraries for UI design, data storage, networking, and more.

• Developers can use Android Framework to create apps for smartphones, tablets, wearables, and other devices.

• Examples of Android Framework components include Activities...read more
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Q2. What do you know about MVVM ?
Ans. 
MVVM stands for Model-View-ViewModel, an architectural pattern used in software development.
• MVVM separates the user interface from the business logic and data access layers.

• Model represents the data and business logic, View represents the UI, and ViewModel acts as a mediator between the two.

• ViewModel exposes data and commands to the View, and communicates with the Model to retrieve and save data.

• MVVM is commonly used i...read more
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Q3. Explain Room Persistence Library.
Ans. 
Room is an abstraction layer over SQLite to allow for more robust database access while harnessing the full power of SQLite.
• Room is a part of Android Architecture Components.

• It provides compile-time verification of SQL queries.

• It simplifies database operations by eliminating boilerplate code.

• It supports LiveData and RxJava for reactive programming.

• It allows for easy migration of database schema.

• It provides a clean API ...read more
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Q4. Write a Builder class.
Ans. 
A Builder class is used to create objects with a large number of optional parameters.
• Builder class is a creational design pattern.

• It separates the construction of a complex object from its representation.

• It allows you to create different variations of an object while avoiding constructor pollution.

• It has a fluent interface that allows you to chain method calls together.

• Example: StringBuilder in Java.
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Q5. Kotlin - letinit, val, var, extension function, data class.
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Q6. Explain - Coroutin, RxJava
Ans. 
Coroutines and RxJava are both used for asynchronous programming in Android development.
• Coroutines are a lightweight solution for asynchronous programming that allow for easy cancellation and error handling.

• RxJava is a reactive programming library that uses Observables and Observers to handle asynchronous events.

• Both Coroutines and RxJava can be used to simplify complex asynchronous code and improve app performance.

• Cor...read more
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Q7. What are SOLID principles in OOP languages?
Ans. 
SOLID principles are a set of five design principles that help in creating maintainable and scalable software applications.
• S - Single Responsibility Principle (SRP)

• O - Open-Closed Principle (OCP)

• L - Liskov Substitution Principle (LSP)

• I - Interface Segregation Principle (ISP)

• D - Dependency Inversion Principle (DIP)
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Everything was fine. The Hr was nice and the manager also.

Q1. What is your experience from your previous work?
Ans. 
I have 5 years of experience working as a Test Engineer in the software industry.
• Developed and executed test cases to ensure software quality

• Performed regression testing to identify bugs and issues

• Collaborated with developers to resolve defects and improve product performance
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Q2. Mx experience from my previous work
Ans. 
I have 5 years of experience working as a Test Engineer in the software industry.
• Developed and executed test cases to ensure software quality

• Performed regression testing to identify bugs and issues

• Collaborated with developers to resolve issues and improve product quality
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Q1. Explain activity lifecycle
Ans. 
Activity lifecycle refers to the series of states an activity goes through during its lifetime in an Android app.
• onCreate() - activity is created

• onStart() - activity becomes visible to the user

• onResume() - activity is interacting with the user

• onPause() - activity is partially visible but still running

• onStop() - activity is no longer visible to the user

• onDestroy() - activity is being destroyed
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Q2. MVVM Architecture explain
Ans. 
MVVM is an architectural pattern used in software development, particularly in Android apps, to separate the user interface from the business logic.
• MVVM stands for Model-View-ViewModel

• Model represents the data and business logic

• View is the UI component that displays the data and interacts with the user

• ViewModel acts as a mediator between the Model and the View, handling user interactions and updating the Model

• MVVM help...read more
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Basic string questions
duration 2hr

Q1. About the project
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Q2. Basics of c++ that make differ in c
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