Mindcom Consulting Services Android Mobile Application Developer Interview Questions and Answers

Q1. Android Activity LifeCycel
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Q2. Android Fragment Life Cycle. The interviewer asked me which life cycle methods get triggered in different scenarios.
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Q3. Higher Order and Lambda Functions in Kotlin
Ans. 
Higher Order and Lambda Functions in Kotlin
• Higher order functions are functions that take other functions as parameters or return functions

• Lambda functions are anonymous functions that can be used as arguments or return values in higher order functions

• They provide a concise way to write code and enable functional programming in Kotlin
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Q4. Kotlin OOPS concepts - Classes, Objects inheritance, Polymorphism, Encapsulation, Abstraction, Interfaces, Visibility Modifiers, Companion Object, Object Expression, Object Declaration
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Q5. Intents, Intent Filter, Broadcast Recievers, Push Notifications
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Q6. Unit Testing and UI Testing
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Q7. Multi Modular Project structure
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Multi Modular Project structure is an architectural approach that divides an application into multiple modules for better organization and scalability.
• Divide the application into separate modules based on functionality or features.

• Each module should have its own set of code, resources, and dependencies.

• Modules can communicate with each other through defined interfaces or APIs.

• Modularization helps in code reusability, e...read more
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Q8. MVVM architecture, VM advantages, Livedata
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Q9. Multi Threading, Coroutines
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Q10. Dependency Injection
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Q11. Showed me Some Kotlin codes and ask me to explain those codes and tell the output
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Q12. Null Pointer Prevention and Type safety in kotlin
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Null pointer prevention and type safety in Kotlin
• Kotlin uses nullable and non-nullable types to prevent null pointer exceptions

• The safe call operator '?' can be used to safely access nullable variables

• The '!!' operator can be used to explicitly throw a null pointer exception

• Kotlin's type system ensures type safety by checking types at compile-time
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Q13. Scope functions
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Q1. Just basic details like current salary, expectation, Notice Period, Location Preferences
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Q1. This was basically salary negotiation round
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Q1. Tell me about yourself?
Ans. 
I am a passionate Android developer with 5 years of experience in building innovative mobile applications.
• 5 years of experience in Android app development

• Strong knowledge of Java and Kotlin programming languages

• Experience with RESTful APIs and third-party libraries

• Designed and implemented user-friendly interfaces

• Published multiple apps on Google Play Store
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Q2. What is meant by pricing procedure?
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Pricing procedure refers to the process of determining the price of a product or service based on various factors.
• Pricing procedure involves analyzing costs, competition, target market, and value proposition.

• It helps in setting a price that maximizes profits while remaining competitive in the market.

• Different pricing strategies such as cost-plus pricing, value-based pricing, and competitive pricing can be part of a pri...read more
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By Tcs hiring process

Some dsa questions
Like based on kadane algorithm
And some implementations based questions

Q1. Diffr between MVP and MVVM.
Ans. 
MVP and MVVM are architectural patterns used in Android development.
• MVP stands for Model-View-Presenter and separates the presentation layer from the business logic.

• MVVM stands for Model-View-ViewModel and separates the presentation layer from the data layer.

• MVP uses a passive view, where the view is dumb and only displays data provided by the presenter.

• MVVM uses a reactive view, where the view observes changes in the ...read more
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Q2. Kotlin basics, agile and CI/CD pipeline.
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