C++ programming

UML

chapter 9

listing 2.9 for reference

9.5 (The Time class) Design a class named Time. The class contains: Data fields hour, minute, and second that represent a time. A no-arg constructor that creates a Time object for the current time. A constructor that constructs a Time object with a specified elapse time since the middle of night, Jan 1, 1970, in seconds. A constructor that constructs a Time object with the specified hour, minute, and second. Three get functions for the data fields hour, minute, and second. A function named setTime(int elapseTime) that sets a new time for the object using the elapsed time. Draw the UML diagram for the class. Implement the class. Write a test program that creates two Time objects, one using a no-arg constructor and the other using Time(555550), and display their hour, minute, and second (Hint: The first two constructors will extract hour, minute, and second from the elapse time. For example, if the elapse time is 555550 seconds, the hour is 10, the minute is 19, and the second is 9. For the no-arg constructor, the current time can be obtained using time (O), as shown in Listing 2.9. ShowCurrent Time.cpp.) LISTING 2.9 ShowCurrentTime.cpp 1 #include 2 #include 3 using namespace std; 5 6 int main() { // Obtain the total seconds since the midnight, Jan 1, 1970 int totalSeconds = time(0); // Compute the current second in the minute in the hour int current Second = totalSeconds % 60; 13 14 // Obtain the total minutes int totalMinutes = totalSeconds / 60; 15 16 // Compute the current minute in the hour int currentMinute = totalMinutes % 60; // Obtain the total hours int total Hours = totalMinutes / 60; // Compute the current hour int currentHour = totalHours % 24; // Display results cout