hello.vala

public class HelloWorld : Object {
	public string name { get ; set; default = "World"; }

	public HelloWorld() {
		/* Huh. With properties accessed like fields,
		   and able to have default values, turns out I don't
		   actually have to do this. At all. Sweet shorthand,
		   Vala. Your syntactic sugar is growing on me. */
		//this.with_name("World");
	}

	/** 
	 * By the way:
	 * I'm doing this to toy with the language. Just so you know,
	 * I could very well forfeit all of this bullshit and write
	 *   stdout.printf("Hello, %s!\n", name ?? "World");
	 * I'm starting to like this language.
	 */
	public HelloWorld.with_name(string name) {
		this.name = name;
	}

	public void run() {
		stdout.printf("Hello, %s\n", this.name);
	}
	
	public bool hasname() {
		return this.name != "World";
	}
}

int main(string[] args) {
	HelloWorld world_hello = new HelloWorld();
	HelloWorld named_hello = new HelloWorld.with_name("Alex");

	world_hello.run(); // Greet the world
	named_hello.run(); // Greet me :)

	/* SUDDENDLY, CHANGING PUBLIC PROPERTIES! Fuck off, accessors. */
	named_hello.name = "Bob McBoberton";

	named_hello.run(); // Greet BobMcBoberton.

	if(!world_hello.hasname()){
		stdout.printf("Hey, the world greeting has no name.\n" +
			"That's kinda boring, no? Let's use it to greet " +
			"some unpleasant person instead.\n");

		world_hello.name = "you nasty gormless git";
	}

	world_hello.run(); // Greet the nasty person.

	return 0;
}