An Example, from C#

class PlayingCard {
		// constructor, initialize new playing card
	public PlayingCard (Suits is, int ir) 
		{ suit = is; rank = ir; faceUp = true; }

		// operations on a playing card
	public boolean isFaceUp  ()           { return faceUp; }
	public int     rank      ()           { return rankValue; }
	public Suits   suit      ()           { return suitValue; }
	public void    setFaceUp (boolean up) { faceUp = up; }
	public void    flip      ()           { setFaceUp( !faceUp);}
	public Color   color     ()           { 
		if ((suit() == Suits.Diamond) || (suit() == Suits.Heart)) 
			return Color.Red;
		return Color.Black;
	}
		// private data values
	private Suits suitValue;
	private int rankValue;
	private boolean faceUp;
}