fig09_03.cpp

来自「是有关C++编程原理教程的例子程序,全,应该对大家有所帮助」· C++ 代码 · 共 54 行

// Fig. 9.3: fig09_03.cpp
// Program to test class Time.
// NOTE: This file must be compiled with Time.cpp.
#include <iostream>
using std::cout;
using std::endl;

#include "Time.h" // include definition of class Time from Time.h

int main()
{
   Time t; // instantiate object t of class Time

   // output Time object t's initial values
   cout << "The initial universal time is ";
   t.printUniversal(); // 00:00:00
   cout << "\nThe initial standard time is ";
   t.printStandard(); // 12:00:00 AM

   t.setTime( 13, 27, 6 ); // change time

   // output Time object t's new values
   cout << "\n\nUniversal time after setTime is ";
   t.printUniversal(); // 13:27:06
   cout << "\nStandard time after setTime is ";
   t.printStandard(); // 1:27:06 PM

   t.setTime( 99, 99, 99 ); // attempt invalid settings

   // output t's values after specifying invalid values
   cout << "\n\nAfter attempting invalid settings:"
      << "\nUniversal time: ";
   t.printUniversal(); // 00:00:00
   cout << "\nStandard time: ";
   t.printStandard(); // 12:00:00 AM
   cout << endl;
   return 0; 
} // end main

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