OkCredit Senior Android Developer Interview Questions and Answers

Basic logic question

Q1. Basic core knowledge
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Tell me about yourself.
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Time and work ,time and distance

Q1. Data Structure and algorithm
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Q2. System design question
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Q1. Basics on profile,work experience etc
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Q2. Skills discussion based on role and resume
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DSA in preferred language, Java coding testt

They have problem of K sorted array and you need to make an sorted array of it.

Q1. Your current job role
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Q2. Software Developer
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Q1. Kotlin Scope function are extension functions, Write extension function for let.
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Q2. Internal Working of ViewModel
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ViewModel is a class designed to store and manage UI-related data in a lifecycle-conscious way.
• ViewModel is part of Android Architecture Components.

• ViewModel survives configuration changes such as screen rotations.

• ViewModel is not destroyed when the associated UI controller is destroyed.

• ViewModel should not contain references to Views or Context to avoid memory leaks.
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Q3. How Coroutine work internally
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Coroutines are lightweight threads that can be suspended and resumed, allowing for asynchronous programming in a sequential manner.
• Coroutines are implemented using suspend functions and can be launched using 'launch' or 'async' builders.

• They are based on the concept of continuation passing style, where the state of the function is saved and can be resumed later.

• Coroutines can be used to perform long-running tasks witho...read more
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Round one consist of coding problems and there's a minimum criteria of solving 2 problems at least to clear this round

Q1. First question was a coding question, merge intervals leetcode
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Q2. Second question was again of leetcode, compare strings
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Q1. Signleton vs Abstract Clas
Ans. 
Singleton is a design pattern that restricts the instantiation of a class to one object, while an abstract class cannot be instantiated and is meant to be subclassed.
• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Abstract classes cannot be instantiated on their own and are designed to be subclassed to provide implementation details.

• Singleton pattern is commonly used ...read more
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Q2. Flexible vs Expanded
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Flexible is used to size widgets based on their content, while Expanded is used to size widgets based on available space.
• Flexible widget sizes itself based on its child's size

• Expanded widget sizes itself to fill the available space in a Row, Column, or Flex

• Flexible can be used within a Row, Column, or Flex to allow the child to grow or shrink based on available space

• Expanded can be used within a Row or Column to fill t...read more
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