Ajayvision Education Senior Android Developer Interview Questions and Answers

Q1. What's the difference between Class and Struct
Ans. 
Classes are reference types, while structs are value types in Swift.
• Classes are reference types, meaning they are passed by reference, while structs are value types, passed by value.

• Classes support inheritance, while structs do not.

• Classes have deinitializers, while structs do not.

• Classes can have reference counting for memory management, while structs do not.

• Example: Class - Person, Struct - Point
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Q2. What is ARC and what's retain count
Ans. 
ARC stands for Automatic Reference Counting, a memory management system used in iOS development. Retain count is the number of references to an object.
• ARC is a memory management system in iOS that automatically tracks and manages memory usage.

• Retain count is the number of strong references to an object, which determines when the object should be deallocated.

• When an object's retain count reaches 0, it is deallocated fro...read more
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Q1. Java script questions with example
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Q2. React native architecture
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Q1. Coding problem based on string manipulation
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Q2. React native questions
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Q1. What are Dispatchers in Kotlin Coroutines?
Ans. 
Dispatchers in Kotlin Coroutines are responsible for determining which thread or threads the coroutines should run on.
• Dispatchers help manage the execution of coroutines on different threads.

• There are different types of Dispatchers like Default, IO, Main, and Unconfined.

• Example: launch(Dispatchers.IO) { // perform network operations }
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Q2. What is Concurrency Design Pattern?
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Concurrency design pattern is a design pattern that deals with managing multiple tasks or processes simultaneously.
• Concurrency design patterns help in improving performance and efficiency in multi-threaded applications.

• Examples of concurrency design patterns include Producer-Consumer, Reader-Writer, and Thread Pool.

• These patterns help in avoiding issues like race conditions, deadlocks, and resource contention.
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Sample program regarding oops, SOLID principles

Q1. Kotlin Basics And Android
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Q2. Refer Google and Check
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Q1. Salary and and negotions
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