Implement Anonymous Classes for Greetings

In this task, you're given a base class named HelloWorldAnonymousClasses containing an interface HelloWorldGreeting with two methods: greet() and greetSomeone(someone: String). Your objective is to implement the sayHello(names: List<String>): List<String> method using anonymous classes to provide greetings in English, French, and Spanish.

• Start by creating three anonymous classes within the sayHello method, each implementing the HelloWorldGreeting interface.

• Each class should provide its own implementation of the greet() and greetSomeone(someone: String) methods:

  • An EnglishGreeting that greets "world" or a specific person in English.
  • A FrenchGreeting that greets "tout le monde" or a specific person in French.
  • A SpanishGreeting that greets "mundo" or a specific person in Spanish.

• Each greeting class should have a greet() method that returns a general greeting to the world, and a greetSomeone(someone: String) method that returns a personalized greeting to the specified person.

• In the sayHello method, create a list of these greeting objects and use it to compile a list of general greetings from each language (e.g. "Hello world").

• Then, for each name in the names parameter, generate personalized greetings in all three languages and append them to the list of general greetings.

• The sayHello function should return a list of strings containing both the initial general greetings (e.g. "Hello world") and all the personalized greetings.

Example of how your implementation should work:

fun main() {
  val helloWorld = HelloWorldAnonymousClasses()
  println(helloWorld.sayHello(listOf("Alice", "Bob")))
  // Output: [Hello world, Salut tout le monde, Hola, mundo, Hello Alice, Salut Alice, Hola, Alice, Hello Bob, Salut Bob, Hola, Bob]
}

In case the list of users is empty:

fun main() {
  val helloWorld = HelloWorldAnonymousClasses()
  println(helloWorld.sayHello(listOf()))
  // Output: [Hello world, Salut tout le monde, Hola, mundo]
}