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Private Member Functions The functions declared private above, is Leap, daysPerMonth, name, number, are helper functions - member functions that will never be needed by a user of the class, and so do not belong to the public interface (which is why they are "private"). They are, however, needed by the interface functions (public member functions), which use them to test the validity of arguments and construct valid dates. For example, the constructor that passes in the month as a string will call the number function to assign a value to the unsigned member variable month. isLeap: The rule for whether a year is a leap year is: • (year % 4 == 0) implies leap year • except (year % 100 == 0) implies NOT leap year • except (year % 400 == 0) implies leap year So, for instance, year 2000 is a leap year, but 1900 is NOT a leap year. Years 2004, 2008, 2012, 2016, etc. are all leap years. Years 2005, 2006, 2007, 2009, 2010, etc. are NOT leap years. Output Specifications Read the specifications for the print function carefully. The only cout statements within your Date member functions should be: 1. the "Invalid Date" warnings in the constructors 2. in your two print functions Required Main Function You must use this main function and global function getDate as they are here. You may not change these functions at all. Copy-and-paste these into your main.cpp file and then add the Date class. Date getDate(); int main() { } Date test Date; test Date = getDate(); cout << endl; cout << "Numeric: "; testDate.printNumeric (); cout << endl; cout << "Alpha: "; testDate.printAlpha (); cout << endl; return 0; Date getDate() { int choice; unsigned monthNumber, day, year; string monthName; cout << "Which Date constructor? (Enter 1, 2, or 3)" << endl << "1 Month Number" << endl << "2 Month Name" << endl << "3 default" << endl; cin >> choice; cout << endl;

Private Member Functions The functions declared private above, is Leap, daysPerMonth, name, number, are helper functions - member functions that will never be needed by a user of the class, and so do not belong to the public interface (which is why they are "private"). They are, however, needed by the interface functions (public member functions), which use them to test the validity of arguments and construct valid dates. For example, the constructor that passes in the month as a string will call the number function to assign a value to the unsigned member variable month. isLeap: The rule for whether a year is a leap year is: • (year % 4 == 0) implies leap year • except (year % 100 == 0) implies NOT leap year • except (year % 400 == 0) implies leap year So, for instance, year 2000 is a leap year, but 1900 is NOT a leap year. Years 2004, 2008, 2012, 2016, etc. are all leap years. Years 2005, 2006, 2007, 2009, 2010, etc. are NOT leap years. Output Specifications Read the specifications for the print function carefully. The only cout statements within your Date member functions should be: 1. the "Invalid Date" warnings in the constructors 2. in your two print functions Required Main Function You must use this main function and global function getDate as they are here. You may not change these functions at all. Copy-and-paste these into your main.cpp file and then add the Date class. Date getDate(); int main() { } Date test Date; test Date = getDate(); cout << endl; cout << "Numeric: "; testDate.printNumeric (); cout << endl; cout << "Alpha: "; testDate.printAlpha (); cout << endl; return 0; Date getDate() { int choice; unsigned monthNumber, day, year; string monthName; cout << "Which Date constructor? (Enter 1, 2, or 3)" << endl << "1 Month Number" << endl << "2 Month Name" << endl << "3 default" << endl; cin >> choice; cout << endl;

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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There's additional code that's required. I have attached the instructions below. It's continuous. 

Private Member Functions The functions declared private above, is Leap, daysPerMonth, name, number, are helper functions - member functions that will never be needed by a user of the class, and so do not belong to the public interface (which is why they are "private"). They are, however, needed by the interface functions (public member functions), which use them to test the validity of arguments and construct valid dates. For example, the constructor that passes in the month as a string will call the number function to assign a value to the unsigned member variable month. is Leap: The rule for whether a year is a leap year is: . (year % 4 == 0) implies leap year ● except (year % 100 == 0) implies NOT leap year • except (year % 400 == 0) implies leap year So, for instance, year 2000 is a leap year, but 1900 is NOT a leap year. Years 2004, 2008, 2012, 2016, etc. are all leap years. Years 2005, 2006, 2007, 2009, 2010, etc. are NOT leap years. Output Specifications Read the specifications for the print function carefully. The only cout statements within your Date member functions should be: 1. the "Invalid Date" warnings in the constructors 2. in your two print functions Required Main Function You must use this main function and global function getDate as they are here. You may not change these functions at all. Copy-and-paste these into your main.cpp file and then add the Date class. Date getDate(); int main() { } Date test Date; test Date = getDate(); cout << endl; cout << "Numeric: "; testDate.print Numeric (); cout << endl; cout << "Alpha: "; testDate.printAlpha (); cout << endl; return 0; Date getDate() { int choice; unsigned monthNumber, day, year; string monthName; cout << "Which Date constructor? (Enter 1, 2, or 3)" << endl << "1 Month Number" << endl << "2 Month Name" << endl << "3 default" << endl; cin >> choice; cout << endl;
Transcribed Image Text:Private Member Functions The functions declared private above, is Leap, daysPerMonth, name, number, are helper functions - member functions that will never be needed by a user of the class, and so do not belong to the public interface (which is why they are "private"). They are, however, needed by the interface functions (public member functions), which use them to test the validity of arguments and construct valid dates. For example, the constructor that passes in the month as a string will call the number function to assign a value to the unsigned member variable month. is Leap: The rule for whether a year is a leap year is: . (year % 4 == 0) implies leap year ● except (year % 100 == 0) implies NOT leap year • except (year % 400 == 0) implies leap year So, for instance, year 2000 is a leap year, but 1900 is NOT a leap year. Years 2004, 2008, 2012, 2016, etc. are all leap years. Years 2005, 2006, 2007, 2009, 2010, etc. are NOT leap years. Output Specifications Read the specifications for the print function carefully. The only cout statements within your Date member functions should be: 1. the "Invalid Date" warnings in the constructors 2. in your two print functions Required Main Function You must use this main function and global function getDate as they are here. You may not change these functions at all. Copy-and-paste these into your main.cpp file and then add the Date class. Date getDate(); int main() { } Date test Date; test Date = getDate(); cout << endl; cout << "Numeric: "; testDate.print Numeric (); cout << endl; cout << "Alpha: "; testDate.printAlpha (); cout << endl; return 0; Date getDate() { int choice; unsigned monthNumber, day, year; string monthName; cout << "Which Date constructor? (Enter 1, 2, or 3)" << endl << "1 Month Number" << endl << "2 Month Name" << endl << "3 default" << endl; cin >> choice; cout << endl;
/* Outputs to the console (cout) a Date exactly in the format "3/1/2012". Does not output a newline at the end. }; */ void printNumeric () const; /* Outputs to the console (cout) a Date exactly in the format "March 1, 2012". The first letter of the month name is upper case, and the month name is printed in full - January, not Jan, jan, or january. Does not output a newline at the end. */ void printAlpha () const; private: /* Returns true if the year passed in is a leap year, otherwise returns false. */ bool isLeap (unsigned y) const; /* Returns number of days allowed in a given month e.g. daysPerMonth (9, 2000) returns 30. Calculates February's days for leap and non-leap years, thus, the reason year is also a parameter. =/ - unsigned daysPerMonth (unsigned m, unsigned y) const; /* Returns the name of a given month - e.g. name (12) returns the string "December" */ string name (unsigned m) const; /* Returns the number of a given named month - e.g. number ("March") returns 3. */ unsigned number (const string &mn) const; Note: Placing the error messages into the constructors like the above is not necessarily a good way to handle constructor errors, but until you learn about exceptions, it's the best we can do.
Transcribed Image Text:/* Outputs to the console (cout) a Date exactly in the format "3/1/2012". Does not output a newline at the end. }; */ void printNumeric () const; /* Outputs to the console (cout) a Date exactly in the format "March 1, 2012". The first letter of the month name is upper case, and the month name is printed in full - January, not Jan, jan, or january. Does not output a newline at the end. */ void printAlpha () const; private: /* Returns true if the year passed in is a leap year, otherwise returns false. */ bool isLeap (unsigned y) const; /* Returns number of days allowed in a given month e.g. daysPerMonth (9, 2000) returns 30. Calculates February's days for leap and non-leap years, thus, the reason year is also a parameter. =/ - unsigned daysPerMonth (unsigned m, unsigned y) const; /* Returns the name of a given month - e.g. name (12) returns the string "December" */ string name (unsigned m) const; /* Returns the number of a given named month - e.g. number ("March") returns 3. */ unsigned number (const string &mn) const; Note: Placing the error messages into the constructors like the above is not necessarily a good way to handle constructor errors, but until you learn about exceptions, it's the best we can do.
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Can you please explain this part again? 

Date::Date :day(1),month(1),year(2000)

{

 

}

Is it written this way? I am a little confused about how to write this portion at the start in the Date.cpp file, can you please rewrite this part more clearly? 

Step 3 program: Date.cpp #include <iostream> #include <string> #include "Date.h" using namespace std; Date::Date() :day(1),month(1),year(2000) { }
Transcribed Image Text:Step 3 program: Date.cpp #include <iostream> #include <string> #include "Date.h" using namespace std; Date::Date() :day(1),month(1),year(2000) { }
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