Hello,

I'm no Java guy, so I ask myself what this means:

public Button(Light light) {
        this.light = light;
}

Is Button a method? I ask myself, because it takes an input parameter light. But if it was a method, why would it begin with a capital letter and has no return data type?

Here comes the full example:

public class Button {
  private Light light;

  public Button(Light light) {
    this.light = light;
  }

  public void press() {
    light.turnOn();
  }
}

I know, this question is really trivial. However, I have nothing to do with Java and haven't found a description for the Button thing above. I'm just interested.