// duynotes blog
public class SpaghettiMeatballs extends PastaDish {
  public void addPasta() {
    System.out.println("Add spaghetti");
  }
  public void addProtein() {
    System.out.println("Add meatballs");
  }
  public void addSauce() {
    System.out.println("Add tomato sauce");
  }
  public void addGarnish() {
    System.out.println("Add Parmesan cheese");
  }
}

public class PenneAlfredo extends PastaDish {
  public void addPasta() {
    System.out.println("Add penne");
  }
   public void addProtein() {
    System.out.println("Add chicken");
  }
  public void addSauce() {
    System.out.println("Add Alfredo sauce");
  }
  public void addGarnish() {
    System.out.println("Add parsley");
  }