Thought Focus Senior Android Application Developer Interview Questions and Answers

Q1. Explain hooks in react
Ans. 
Hooks are a new addition in React 16.8 that allow you to use state and other React features without writing a class.
• Hooks are functions that let you use state and other React features in functional components.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• Custom hooks are reusable functions that can contai...read more
Answered by AI
Add your answer

Create weather application in react native with unit test scripts

Q1. GCD, Operation queue, struct vs class, some small logical coding ,
Add your answer

Q1. GCD, operation queue, URL Session tasks, ref type , value tyep,
Add your answer

Q1. Basic and discussion about Job offer
Add your answer

Q1. Oops based question
Add your answer
Q2. Solid principles and how to implement
Ans. 
Solid principles are a set of five design principles for writing maintainable and scalable code.
• Single Responsibility Principle: A class should have only one reason to change.

• Open/Closed Principle: Classes should be open for extension but closed for modification.

• Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.

• Interfa...read more
Answered by AI
Add your answer

Tata using network layer

Some reasoning, English, numerical ability and some questions related to html , CSS javascript. question were basic.

Q1. Question were basic questions like when you search on google fresher interview it questions .
Add your answer

Q1. One coding question and then oops concept and searching, sorting.
Add your answer

Q1. HR just asked me about project and were telling me about company.
Add your answer

Q1. Oops , programming, collection, java basic and Kotlin basic
Add your answer

MC- Android Java related Questions

Q1. Kotlin coroutine related, Comparison of Architecture
Add your answer

Q1. Basic interview question
Add your answer

Q1. Basic interview questions
Add your answer

Q1. Basic info of application development and upload process
Add your answer

Q1. Weak - Strong Difference
Ans. 
Weak - Strong Difference is a common interview question to assess understanding of object-oriented programming concepts.
• Weak references do not prevent the referenced object from being deallocated, while strong references do.

• Weak references are used to avoid retain cycles in iOS development.

• Strong references increase the retain count of an object, keeping it in memory until all strong references are released.
Answered by AI
Add your answer
Q2. Open - Public Difference
Ans. 
In iOS development, 'open' allows access to the class or method from any module, while 'public' restricts access to the current module only.
• Open access modifier allows classes and methods to be accessed from any module.

• Public access modifier restricts access to the current module only.

• Example: 'open class MyClass' can be accessed from any module, while 'public class MyClass' can only be accessed within the current modu
Answered by AI
Add your answer