Suppose you have given an array of array of custom Objects. - Learn from here, What are strong, soft, weak and phantom references in Java? Explain the use-case of Two Pointer approach. Do objects get passed by reference or value in Java? How to load Large Bitmaps? - Learn from here, What is the difference between open and public in Kotlin? Protected vs Default. Proguard-Obfuscation/ Minification, Build Variants, Flavours. - Learn from here, How to share ViewModel between Fragments in Android? The 3rd question will be if you have back stack there. - Learn from here, What is the project structure of an Android Application? (hint: Double checked locking/synchronization). - Learn from here, Explain OkHttp Interceptor - Learn from here, OkHttp - HTTP Caching - How caching work in Android - Learn from here, Tell me something about RxJava. Can a static method be overloaded/overridden?Can a constructor be made static? (hint : equals() and hashcode() overriding), Programs based on Inheritance and multithreading. It is easy to contribute to open source projects via GitHub. How do you control the application version update to specific number of users? Steve Yegge – Five Essential Phone Interview Questions Daniel Blumenthal – Questions I Want to Ask, but Can't 50+ Interviews with Facebook, Twitter, Amazon & others This is a "divide and conquer" algorithm, meaning it recursively "divides" given array in to smaller parts (up to 1 element) and then sorts those parts, combining them with each other. Why runnable interface if we have already had Thread class in Java? apply() is asynchronous and it won't return any boolean response. What is the difference between instantiation and initialization of an object? How to implement Priority Queue? This can lead to an Exception (of the type java.lang.IllegalArgumentException: View not attached to window manager if you use, for instance, findViewById to retrieve a view inside the Activity). How to overcome this limitation? Add (Object object), you called Add(null) what will be the output here? An abstract class, is a class that contains both concrete and abstract methods Firstly, selection sort assumes that the first element of the array to be sorted is the smallest, but to confirm this, it iterates over all other elements to check, and if it finds one, it gets defined as the smallest one. What is Dependency Injection? What problems can this result in? In Android you may use either the Serializable, Externalizable (implements Serializable) or Parcelable interfaces. This is the basic GIT Interview Questions asked in an interview. So utilize our Android Interview Questions and answers to grow in your career. sendStickyBroadcast() performs a sendBroadcast(Intent) known as sticky, i.e. - Learn from here. Iterators can be applied to any collection. Difference between Kotlin Synthetics, View binding and Butterknife? - Learn from here, Explain function literals with receiver in Kotlin? - Learn from here, How would you preserve Activity state during a screen rotation? Explain Dijkstra algorithm with an example. - Learn from here, How are Timer, Delay, and Interval operators used in RxJava? What is the difference between a min-heap and a max-heap? To do its' job, it "grows" sorted portion of data, by "inserting" new encountered elements into already (innerly) sorted part of the array, which consists of previously encountered elements. Method overloading is an example of static polymorphism, while method overriding is an example of dynamic polymorphism. Why should we use it? The level of questions asked on the topic of Data Structures And Algorithms totally depends on the company for which you are applying. Note: AsyncTasks by default run on a single thread using a serial executor, meaning it has only 1 thread and each task runs one after the other. Use a SpannableString when your text doesn't need to be changed but the styling does. - Learn from here, What is Doze? Continuation Question to 32, What is the time complexity of your solution and how can you improve it? We also have a series for Android Interview Questions and Answers.. You can find it here.. Also, go through the cheat sheet for the Android interview. However in case of method overriding the overriding method can have more specific return type (meaning if, for example, base method returns an instance of Number class, all overriding methods can return any class that is extended from Number, but not a class that is higher in the hierarchy, like, for example, Object is in this particular case). ViewGroup is the base class for Layouts. Hence many tech-savvy people are trying to make their way into this career. This approach allows merge sort to achieve very high speed, while doubling required space, of course, but today memory space is more available than it was a couple of years ago, so this trade-off is considered acceptable. Why Realm?Realm Methods, Realm vs Sqlite. Below is the list of features of GitHub: Creating a folder via the … How to handle it? - Learn from here, What is Android Data Binding? The class which inherits the properties of other is known as subclass (derived class, child class) and the class whose properties are inherited is known as superclass (base class, parent class). You all are awesome. - Learn from here, What is the function of an IntentFilter? It should be noted that standard class hierarchy does not apply to generic types. - Learn from here and here, MVC vs MVP vs MVVM architecture. Keep yourself up to date with the latest library versions if using. Try and learn more deeply abut the concepts. - Learn from here. Android Interview Questions - Your Cheat Sheet For Android Interview, Tell all the Android application components. Step 2: Open your Android Studion then go to the File > New > Project from Version Control as shown in the below image. If nothing happens, download GitHub Desktop and try again. Top 50+ Core Java Interview Questions And Answers. Do you agree we use composition over inheritance? Be prepared for the questions now. - Learn from here, When would you use java thread instead of an AsyncTask? - Learn from here, Difference between StringBuffer and StringBuilder? As long as an object is being referenced, the JVM considers it alive. What is Java Memory Model? * the constructor that takes a Parcel is needed. extends MyCustomClass> or D explain Scoped Storage in Android if StringBuffer value compared with String — strbuf.equals ( )... 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