Android™ How to Program, Second Edition

Class Card

Class Card (Fig. E.8) contains two String instance variables—face and suit—that are used to store references to the face name and suit name for a specific Card. The constructor for the class (lines 10–14) receives two Strings that it uses to initialize face and suit. Method toString (lines 17–20) creates a String consisting of the face of the card, the String " of " and the suit of the card. Card’s toString method can be invoked explicitly to obtain a string representation of a Card object (e.g., "Ace of Spades"). The toString method of an object is called implicitly when the object is used where a String is expected (e.g., when printf outputs the object as a String using the %s format specifier or when the object is concatenated to ...