■ 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

Database System Concepts
7th Edition
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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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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 (0), as shown in Listing 2.9, ShowCurrent Time.cpp.)
Transcribed Image Text: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 (0), as shown in Listing 2.9, ShowCurrent Time.cpp.)
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