To work effectively with Kotlin, knowing how to initialize a List of lists is important. Also known as a two-dimensional array, or a matrix, a list of lists is a data structure that is defined as a single list
We can also use Java interop methods to create a temporary file in Kotlin with the createTempFile() method from the java.io.File class. To ensure the temporary file is deleted when the JVM terminates, the deleteOnExit() method needs to be called: fun createTempFile(): File { val tempFile...
In themovemethod we have the key algorithm of the game. To understand it, look at how the snake is moving. We control the head of the snake. We can change its direction with the cursor keys. The rest of the joints move one position up the chain. The second joint moves where the fi...
Get familiar with the project requirements and choose one of two scenerios to create a Kotlin Multiplatform (KMM) library.
Create a Non-Empty New List in Java We discussed how to create empty List objects and then add objects to the list. Now let us see another way to create a List with objects in it. import java.util.*; public class myClass { public static void main(String args[]) { List<String> li...
For creating the builder pattern in kotlin first, we need small builder objects to create a final object of our main class and build the same in the main class. The builder class contains the constructor, which was public and it will contain all the required parameters. Then we construct an...
In this example, we start with a list calledoriginal_listcontaining mixed-case strings. We create an empty list namedlowercase_listto store the results. By iterating through each string in the original list, we apply thelower()method, which converts the string to lowercase. Each converted str...
val eg = if (java.isArray()) listOf(java.componentType.kotlin.toInvariantFlexibleProjection()) else arguments return KTypeProjection.invariant(createType(eg, nullable = false)) } fun Type.toKTypeProjection(): KTypeProjection = when (this) { ...
How to Create a Mobile App: #1. Start With Market Research 'I want to create an app'—sounds great! Now, try taking a hard look at your idea and answering these questions: Who are you making apps for? What’s your target audience? How will it stand out from similar apps? Who are...
Below, we will create Android and iOS classes for each action point mentioned in the test scenario above. First, let’s locate the elements for the required components on Android and iOS, enabling us to execute the tests. HomePage class for Android public class HomePage { AndroidDriverManager ...