How to parse JSON in Kotlin?
I’m receiving a quite deep JSON object string from a service which I must parse to a JSON object and then map it … Read more
Java
What is the difference between Factory and Strategy patterns?
Can any one explain the difference between factory and strategy patterns? For me both are looking same other than an extra factory class … Read more
How can I resolve the error “The minCompileSdk (31) specified in a dependency’s AAR metadata” in native Java or Kotlin? [duplicate]
This question already has answers here: Android app won’t build — The minCompileSdk (31) specified in a dependency’s androidx.work:work-runtime:2.7.0-beta01 (26 answers) Closed 8 … Read more
Error inflating when extending a class
I’m trying to create a custom view GhostSurfaceCameraView that extends SurfaceView. Here’s my class definition file GhostSurfaceCameraView.java: public class GhostSurfaceCameraView extends SurfaceView implements … Read more
Any reason to prefer getClass() over instanceof when generating .equals()?
I’m using Eclipse to generate .equals() and .hashCode(), and there is an option labeled “Use ‘instanceof’ to compare types”. The default is for … Read more
What is the difference between Collection and List in Java?
What is the difference between Collection and List in Java? When should I use which? 7 Answers 7
How can I play sound in Java?
I want to be able to play sound files in my program. Where should I look? 12 Answers 12
Returning null as an int permitted with ternary operator but not if statement
Let’s look at the simple Java code in the following snippet: public class Main { private int temp() { return true ? null … Read more
Integer.toString(int i) vs String.valueOf(int i)
I am wondering why the method String.valueOf(int i) exists ? I am using this method to convert int into String and just discovered … Read more
Can a java lambda have more than 1 parameter?
In Java, is it possible to have a lambda accept multiple different types? I.e: Single variable works: Function <Integer, Integer> adder = i … Read more