// Fig. 9.5: Circle.java
// Definition of class Circle
public class Circle extends Point {  // inherits from Point
   protected double radius;

   // no-argument constructor
   public Circle()
   {
      // implicit call to superclass constructor here
      radius = 0;        
      System.out.println( "Circle constructor: " + this );
   }

   // Constructor
   public Circle( double r, int a, int b )
   {
      super( a, b );  // call the superclass constructor
      radius = r;  
      System.out.println( "Circle constructor: " + this );
   }

   // finalizer
   protected void finalize() 
   {
      System.out.println( "Circle finalizer: " + this );
      super.finalize();  // call superclass finalize method
   }

   // convert the Circle to a String
   public String toString()
   {
      return "Center = " + super.toString() +
             "; Radius = " + radius;
   }
}

/**************************************************************************
 * (C) Copyright 1999 by Deitel & Associates, Inc. and Prentice Hall.     *
 * All Rights Reserved.                                                   *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
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