Apexon Senior android Software Engineer Interview Questions and Answers

Q1. Mostly in automotive android
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Q2. What is car propertymanager and mostly in to aosp
Ans. 
Car propertymanager is a component in AOSP that manages properties related to car-specific features.
• Car propertymanager is used to handle properties like car make, model, year, etc.

• It is mostly used in Android Automotive OS for managing car-specific settings and configurations.

• Developers can use car propertymanager to access and modify car-related properties in their apps.
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Q1. Software skills assessment
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Q1. More than technical it was soft skills assessment
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MC- Android Java related Questions

Q1. Kotlin coroutine related, Comparison of Architecture
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Q1. Android: SOLID, Room dB, Jetpack component Kotlin : advantages, elvis operator, inline/higher order function, DSA- array, list
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Q1. Java basics OOPS, Hashmaps, DSA problem, Android basics
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Q1. Overall journey , goals
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Q1. Basic of Android, Java, kotlin, coroutines
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Q2. Basic of Flutter concepts, dart programming language
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Q1. Before 2nd round there was documents verification. And second round was client round which they never took it. I took follow ups they told me it's on hold.
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Q1. Basic Android questions and Kotlin
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Q1. Architecture like MVVM explain
Ans. 
MVVM is an architectural pattern that separates the UI, business logic, and data layers in an Android app.
• Model: Represents the data and business logic of the application.

• View: Represents the UI components of the application.

• ViewModel: Acts as a mediator between the Model and View, handling communication and logic.

• Data binding: Allows automatic updates between the ViewModel and View.

• Example: Using LiveData to observe c
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Q1. Explain MVVM architecture
Ans. 
MVVM is an architectural pattern that separates the UI, business logic, and data layers in an Android app.
• Model: Represents the data and business logic of the application.

• View: Represents the UI components of the application.

• ViewModel: Acts as a mediator between the Model and View, handling communication and logic.

• Data binding: MVVM uses data binding to synchronize the View and ViewModel.

• Example: In an Android app, the...read more
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Q2. Explain Java Basic concept
Ans. 
Java is a high-level programming language known for its simplicity and versatility.
• Java is an object-oriented language

• It is platform-independent due to its 'write once, run anywhere' principle

• Java uses a virtual machine (JVM) to execute code

• It supports multithreading for concurrent programming

• Java has automatic memory management through garbage collection
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Q3. Explain Kotlin modifiers
Ans. 
Kotlin modifiers are keywords used to modify classes, properties, functions, and other elements in Kotlin programming language.
• Kotlin modifiers include 'public', 'private', 'protected', 'internal', 'open', 'final', 'abstract', 'override', 'lateinit', 'const', 'companion', 'inline', 'data', 'sealed', 'inner', etc.

• Modifiers like 'public', 'private', 'protected', and 'internal' control the visibility of classes, functions...read more
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Q4. Explain RXJava networking library
Ans. 
RXJava is a popular Java library for composing asynchronous and event-based programs using observable sequences.
• RXJava provides a powerful way to handle asynchronous operations by using observables and subscribers.

• It simplifies complex asynchronous code by allowing developers to chain operations and handle errors more easily.

• RXJava is commonly used in Android development for handling network requests and background tas...read more
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Q5. Explain Git commit , merge and rebase command
Ans. 
Git commit records changes to the repository, merge combines changes from different branches, and rebase moves changes to a new base commit.
• Git commit saves changes to the local repository with a message describing the changes made.

• Git merge combines changes from different branches into the current branch.

• Git rebase moves changes from one branch to another by applying each commit from the source branch to the target br
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