UST android Software Engineer Interview Questions and Answers

Q1. Questions related to koltin
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Q2. Jetpack compose uses
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Jetpack Compose is a modern Android UI toolkit that simplifies and accelerates UI development.
• Declarative UI: Jetpack Compose allows developers to build UI using a declarative programming model.

• State management: Jetpack Compose handles state management efficiently, making it easier to update UI based on data changes.

• Compose functions: Developers can create reusable UI components using Compose functions.

• Interoperability...read more
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Q3. Difference between remember and rememberSaveable
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remember is used to store a value in a composable function, while rememberSaveable is used to store a value that survives configuration changes.
• remember is used to store a value that does not survive configuration changes

• rememberSaveable is used to store a value that survives configuration changes, such as rotation of the device

• rememberSaveable is typically used for storing view model data in Jetpack Compose
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Q4. Coroutines parallel and sequential processing
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Q1. Basics of Android
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Q1. Technical implementation
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Q1. Company fit culture test
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Q1. Android Basics on mvvm architecture
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Q2. Navigation Component
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Q3. Jetpack components- work manager, viewmodel
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Q1. Managerial questions
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Q1. Basic of kotlin questions
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Q2. Live data and life cycle
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Q3. Diff between MVVM and other architectures
Ans. 
MVVM is a design pattern that separates the UI, business logic, and data layers, promoting better code organization and testability.
• MVVM stands for Model-View-ViewModel, where the ViewModel acts as an intermediary between the View and the Model.

• MVVM promotes data binding, making it easier to keep the UI in sync with the underlying data.

• Other architectures like MVC (Model-View-Controller) and MVP (Model-View-Presenter) ...read more
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The question about prblm solving

Any presentation or pdf to submit it at any topic or else to explain it

The discussion with my team mate

Q1. Basic android questions
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Q2. Services mvvm roomdb and all basic android things
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Q1. MVVM, kotlin, MVP
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Q1. Android basics, fragments, activities, their life cycle
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Q2. Java basics, wrapper, kotlin, mvvm, api calls
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Q3. Dsa question- move all the zeroes to left and 1s to the right
Ans. 
Move all zeroes to left and ones to right in an array
• Iterate through the array from both ends

• Swap the elements if left is 1 and right is 0

• Stop when left and right pointers meet
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Q1. Service, background foreground service
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Q2. Mvvm, how does it work, viewmodel internal
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Q3. Memory leakage, how to avoid and identify
Ans. 
Memory leakage can cause app crashes and slow performance. It can be avoided by proper memory management and identifying the root cause.
• Avoid creating unnecessary objects

• Release unused resources

• Use memory profiling tools like Android Profiler

• Avoid static references to objects

• Use weak references when necessary
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Q4. Perquisite to release app on play store
Ans. 
Perquisites for releasing an app on Play Store
• Creating a developer account on Google Play Console

• Complying with Google Play policies and guidelines

• Providing accurate app information and metadata

• Ensuring app compatibility with target devices

• Testing app thoroughly for bugs and crashes

• Publishing app with appropriate content rating

• Setting up monetization options and pricing

• Providing customer support and responding to user
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Q1. Explain MVVM in detail
Ans. 
MVVM is a design pattern that separates UI code from business logic and data handling.
• MVVM stands for Model-View-ViewModel

• Model represents the data and business logic

• View displays the UI and user interactions

• ViewModel acts as a mediator between Model and View

• ViewModel exposes data and commands to the View

• Data binding is used to keep the View and ViewModel in sync

• MVVM promotes testability and maintainability of code
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Q2. Kotlin sealed class, data class, scope functions
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Q3. Core Java basic questions
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Q1. Detail discussion on design patterns
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Q2. Basic kotlin or java programming
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Q1. Details about notice period and salary
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