נושא: constructor in c++ plz help

Fig. 9.8: Time.h
 2   // Declaration of class Time.
 3   // Member functions defined in Time.cpp.
 4
 5   // prevent multiple inclusions of header file
 6   #ifndef TIME_H
 7   #define TIME_H
 8
 9   // Time abstract data type definition
10   class Time
11   {
12   public:
13     Time( int = 0, int = 0, int = 0 ); // default constructor
14
15     // set functions
16     void setTime( int, int, int ); // set hour, minute, second
17     void setHour( int ); // set hour (after validation)
18     void setMinute( int ); // set minute (after validation)
19     void setSecond( int ); // set second (after validation)
20
21     // get functions
22     int getHour(); // return hour
23     int getMinute(); // return minute
24     int getSecond(); // return second
25
26     void printUniversal(); // output time in universal-time format
27     void printStandard(); // output time in standard-time format
28   private:
29     int hour; // 0 - 23 (24-hour clock format)
30     int minute; // 0 - 59
31     int second; // 0 - 59
32   }; // end class Time
33
34   #endif