Fleming Embedded and Software Solutions Android Developer Trainee Interview Questions and Answers

Data structure - tree and linkedlist questions asked, binary search tree

Q1. Java multithreading
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Q2. Write code for synchronise threads
Ans. 
Synchronizing threads in Android can be achieved using synchronization blocks or methods.
• Use synchronized keyword to create a synchronized block or method

• Use locks such as ReentrantLock for more complex synchronization needs

• Consider using synchronized collections like ConcurrentHashMap for thread-safe data structures
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There is MCQ question categories reasoning math logical puzzle etc.

Q1. Question from java and android 1 Opps deep drive concept Encapsulation Abstraction Polymorphism Inheritance Use of keywords Var , val cons, static inline return break an...read more
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Assign some coding questions it will online on zoom and it will be final round

Q1. Android Memory Leaks
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Q2. Android architecture
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Q3. Kotlin basics questions
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Q1. What is your experience
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Q2. What is your digree nothing else start
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Q1. Mostly they focus on java , oops concept. Rather than Android related questions
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Q2. Prepare basics of oops well
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Very easy round it was there was very very very very very

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Q1. What is the difference between interface and abstract class?
Ans. 
Interface defines only method signatures while abstract class can have both method signatures and implementations.
• An interface can be implemented by multiple classes while a class can only extend one abstract class.

• An abstract class can have constructors while an interface cannot.

• An abstract class can have non-abstract methods while an interface can only have abstract methods.

• An abstract class can have instance variabl...read more
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Q2. What is singleton class?
Ans. 
A singleton class is a class that can only have one instance created at a time.
• Singleton classes are often used for managing resources that should only have one instance, such as a database connection or a configuration file.

• They are implemented by making the constructor private and providing a static method to access the single instance.

• Singleton classes can also implement interfaces and inherit from other classes.

• Exa...read more
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Q1. What is high order function?
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A high order function is a function that can take other functions as parameters or return functions as results.
• High order functions can be used to create more flexible and reusable code.

• They allow for functions to be passed as arguments, making code more modular.

• Examples include map, filter, and reduce functions in functional programming.
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Q2. What is most efficient layout to use on android
Ans. 
ConstraintLayout is the most efficient layout to use on Android.
• Allows for flat view hierarchy

• Handles complex layouts efficiently

• Supports responsive design

• Provides tools for optimizing layouts
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