Import another file in Kotlin

In Kotlin, you can import another file or class using the import keyword. To import a class, you need to specify the package and the class name separated by a dot. In Kotlin, everything is inside a package, so you need to specify the package of the class you want to import.

Here is an example of importing a class:

Suppose you have a class named HelloWorld defined in a package named com.example.demo. You can import this class in another file as follows:

import com.example.demo.HelloWorld
fun main(args: Array) {

    val obj = HelloWorld()

    obj.sayHello()

}

In this example, we imported the HelloWorld class from the com.example.demo package. We then instantiated an object of the HelloWorld class and called its sayHello() method.

You can also import all the classes in a package using the wild card (*):

import com.example.demo.*
fun main(args: Array) {

    val obj = HelloWorld()

    obj.sayHello()

}

In this example, we imported all the classes in the com.example.demo package using the star (*) symbol. We then instantiated an object of the HelloWorld class and called its sayHello() method.

In summary, you can import a class or a package in Kotlin using the import keyword followed by the package and class name separated by a dot.