/* An instance of this class represents the score of a game of tennis.
*/
public class TennisGameScore {

   // constant
   // --------
   private static final int POINTS_TO_WIN = 4;

   // instance variables
   private String serverName, receiverName;  // names of the players
   private int serverPoints, receiverPoints; // # points scored by the players


   // constructors
   // ------------

   /* Initializes a newly created object and assigns the specified names
   ** (e.g., "Borg" and "Connors") to the server and receiver, respectively.
   */
   public TennisGameScore(String nameOfServer, String nameOfReceiver) {
      // STUB!!
   }

   /* Initializes a newly created object and assigns the generic names 
   ** "Server" and "Receiver" to the server and receiver, respectively.
   */
   public TennisGameScore() { this("Server", "Receiver"); }


   // observers
   // ---------

   // Returns # of points scored in this game by the server.
   public int getServerPoints() { return serverPoints; }

   // Returns # of points scored in this game by the receiver.
   public int getReceiverPoints() { 
      return -1 ;   // STUB!!
   }


   // Returns the name of the server.
   public String getServerName() { 
      return "Glork";    // STUB!!
   }

   // Returns the name of the receiver.
   public String getReceiverName() { 
      return "Snerd";    // STUB!!
   }


   /** Returns true if the game is over, false otherwise.
   **  The game is over if it has been won by either the server or
   **  the receiver.
   */
   public boolean isOver() {
      return false;   // STUB!!
   }


   /* Returns a String describing the current score of the game.
   ** Depending upon the score, the String should have one of five forms
   ** as exemplified by what's below, where it is assumed that one of
   ** the sides is named "Borg" (as in Bjorn Borg, Sweden's 11-time
   ** major champion):
   **
   ** "GAME Borg" 
   ** "ADVANTAGE Borg"
   ** "DEUCE"
   ** "15 - 40"
   ** "30 ALL"
   */
   public String getScore() {
      return "ADVANTAGE Glork";   // STUB!!
   }


   /** Returns a String describing the state of the game.  The first part
   **  of the string identifies the server and the receiver by name and
   **  indicates how many points each has scored during the game.
   **  The second part is the game's score as expressed by the getScore()
   **  method.  Here are a few examples:
   **
   **  "Connors(5) serving Borg(6): ADVANTAGE Borg"
   **  "Clijsters(2) serving Sharapova(0): 30 - LOVE"
   */
   public String toString() {
      String prefix = getServerName() + '(' + getServerPoints() + 
                      ") serving " + getReceiverName() + '(' +
                      getReceiverPoints() + "): ";
      return prefix + getScore();
   }


   // mutators
   // --------

   /** Records a point being scored by the server.  It is assumed that,
   **  prior to the point being scored, the game was not over.
   */
   public void pointForServer() {  }   // STUB!!


   /** Records a point being scored by the receiver.  It is assumed that,
   **  prior to the point being scored, the game was not over.
   */
   public void pointForReceiver() {  }  // STUB!!

}