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+// Fig. 6.20: fig06_20.cpp
+// Demonstrating the Time class set and get functions
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+// include definition of class Time from time3.h
+#include "time3.h"
+
+void incrementMinutes( Time &, const int );  // prototype
+
+int main()
+{
+   Time t;              // create Time object
+
+   // set time using individual set functions
+   t.setHour( 17 );     // set hour to valid value
+   t.setMinute( 34 );   // set minute to valid value
+   t.setSecond( 25 );   // set second to valid value
+
+   // use get functions to obtain hour, miunute and second
+   cout << "Result of setting all valid values:\n" 
+        << "  Hour: " << t.getHour()
+        << "  Minute: " << t.getMinute()
+        << "  Second: " << t.getSecond();
+
+   // set time using individual set functions
+   t.setHour( 234 );    // invalid hour set to 0
+   t.setMinute( 43 );   // set minute to valid value
+   t.setSecond( 6373 ); // invalid second set to 0
+
+   // display hour, minute and second after setting 
+   // invalid hour and second values
+   cout << "\n\nResult of attempting to set invalid hour and"
+        << " second:\n  Hour: " << t.getHour()
+        << "  Minute: " << t.getMinute()
+        << "  Second: " << t.getSecond() << "\n\n";
+
+   t.setTime( 11, 58, 0 );    // set time
+   incrementMinutes( t, 3 );  // increment t's minute by 3
+
+   return 0;
+
+} // end main
+
+// add specified number of minutes to a Time object
+void incrementMinutes( Time &tt, const int count )
+{
+   cout << "Incrementing minute " << count
+        << " times:\nStart time: ";
+   tt.printStandard();
+
+   for ( int i = 0; i < count; i++ ) {
+      tt.setMinute( ( tt.getMinute() + 1 ) % 60 );  
+
+      if ( tt.getMinute() == 0 )
+         tt.setHour( ( tt.getHour() + 1 ) % 24 );
+
+      cout << "\nminute + 1: ";
+      tt.printStandard();
+
+   } // end for
+
+   cout << endl;
+
+} // end function incrementMinutes
+
+/**************************************************************************
+ * (C) Copyright 1992-2002 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.                     *
+ *************************************************************************/