Here, we declare an emptySetand aListofStringelements. We then create a newSetby concatenating the emptySetand theListusing theplus()operator. 6. Using theunion()Method Alternatively, we can obtain the same goal by using theunion()method in place of theplus()operator: ...
Declarations should use generic types, like List and Map. In Kotlin, it appears the idiom is to use the built-in factory methods like mapOf and arrayOf when possible. 3. Use type inference judiciously; declare explicit types for clarity and safety (to make sure you and the compiler are...
The const is one of the keywords, and it is used to declare the values on the kotlin language. It means once we declared the values, it does not change; it accepts only the read-value access. In kotlin, if we want to create the local constants and it is supposed to be used with ...
Kotlinis a statically-typed programming language that runs on the Java virtual machine. The type of every expression is known at compile time. A variable is a place to store data. A variable has a name and a data type. A data type determines what values can be assigned to the variable....
! The integer literal does not conform to the expected type String! The boolean literal does not conform to the expected type String However, initializing the array only withStringvalues will run as expected. Declare and Initialize an Array in Kotlin With theArray Constructor ...
fun main(args: Array<String>) { println("Welcome To My Domain its the third example that related to the kotlin interface") val ob = Sample() ob.demo() ob.demo1() } Output: In the final example, we used to declare the two interfaces and the methods we can implement using the class...
The scope function refers to the Student object asitin the output. Without using the scope function, we would have had to declare a new variable and initialize it with the Student object’s value to access it. Use thealsoScope Function in Kotlin ...
First we need to create a Spring Boot application, which can be done in a number of ways. Using the Initializr Website Visit https://start.spring.io and choose the Kotlin language. Gradle is the most commonly used build tool in Kotlin, and it provides a Kotlin DSL which is used by de...
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Once you’ve added the images to your project, open the Classes group in XCode, and select HelloWorld.h. Inside the @interface declaration, declare three instance variables you’ll need like the following: CCSprite * background; CCSprite * selSprite; NSMutableArray * movableSprites; You’ll...