Java Code:
public class Parcel1 {
  class Contents {
    private int i = 11;

    public int value() {
      return i;
    }
  }

  class Destination {
    private String label;

    Destination(String whereTo) {
      label = whereTo;
    }

    String readLabel() {
      return label;
    }
  }

  // Using inner classes looks just like
  // using any other class, within Parcel1:
  public void ship(String dest) {
    Contents c = new Contents();
    Destination d = new Destination(dest);
    System.out.println(d.readLabel());
  }

  public static void main(String[] args) {
    Parcel1 p = new Parcel1();
    p.ship("Tanzania");
  }
}