Homework SourseLecture notes using the given member functions and UML struc
Solution
//Date.h
#ifndef DateFormat
#define DateFormat
#include <string>
using std::string;
class Date {
public:
// constructor
Date();
// parameterized consturctors
Date( int, int );
Date( int, int, int );
Date( string, int, int );
// setters
void setDay11(int);
void setMonth11( int );
// print functions
void print11() const;
void printDDDYYYY11( ) const;
void printMMDDYY11( ) const;
void printMonthDDYYYY11( ) const;
~Date();
private:
// variables
int month1;
int day1;
int year1;
// check valid day
int checkDay(int)const;
// count days in month
int daysInMonth(int)const;
// check leap year
bool isLeapYear()const;
// converter function
int convertDDToDDD()const;
// setter
void setMMDDFromDDD(int);
// converter function
string convertMMToMonth(int)const;
// setter
void setMMFromMonth(string);
// converter function
int convertYYYYToYY()const;
// setter
void setYYYYFromYY(int);
};
#endif
//Date.cpp
// input output library
#include <iostream>
using std::cout;
using std::endl;
// library to set width and fill
#include <iomanip>
using std::setw;
using std::setfill;
// library to use time
#include <ctime>
using std::time;
using std::localtime;
using std::tm;
using std::time_t;
#include \"Date.h\"
// default constructor
Date::Date()
{
// taking pointer to tm
struct tm *ptr;
// set time as 0
time_t t1 = time( 0 );
// pointer taking address of t1
ptr = localtime( &t1 );
// day1 holds the day value of ptr
day1 = ptr->tm_mday;
// month1 holds the month value of ptr
month1 = 1 + ptr->tm_mon;
// year1 holds the year value of ptr + 1900
year1 = ptr->tm_year + 1900;
}
// parameterized constructor
Date::Date( int ddd1, int yyyy1 )
{
// set year
year1=yyyy1;
// call the month from date function
setMMDDFromDDD(ddd1);
}
// parameterized constructor
Date::Date( int mm1, int dd1, int yy1 )
{
// call the year from year function
setYYYYFromYY( yy1 );
// set day function
setDay11( dd1 );
}
// parameterized constructor
Date::Date(string monthName2,int dd1,int yyyy1)
{
// call the month from month function
setMMFromMonth(monthName2);
// setday
setDay11(dd1);
year1=yyyy1;
}
void Date::setDay11( int d1 )
{
// check for valid day and set it
day1 = checkDay(d1);
}
void Date::setMonth11( int m1 )
{
// check for valid month and set it
if(m1>0&& m1<=12)
month1=m1;
else
{
// end set month to 1
month1=1;
cout<<\"invalid month(\"<<m1<<\")set to 1\ \";
}
}
// print function
void Date::print11()const
{
cout<<month1<<\"/\"<<day1<<\'/\'<<year1<<endl;
}
void Date::printDDDYYYY11()const
{
cout<<convertDDToDDD()<<\' \'<<year1<<endl;
}
void Date::printMMDDYY11()const
{
// print in specific format, 2 width, fill 0
cout<<setw(2)<<setfill(\'0\')<<month1<<\'/\'<<setw(2)<<setfill(\'0\')<<day1<<setw(2)<<setfill(\'0\')<<convertYYYYToYY()<<endl;
}
void Date::printMonthDDYYYY11()const
{
cout<<convertMMToMonth(month1)<<\' \'<<day1<<\",\"<<year1<<endl;
}
// date destructor
Date::~Date()
{
cout<<\"date object destructor for date\";
print11();
cout<<endl;
}
// check if day is valid
int Date::checkDay(int testDay)const
{
if(testDay>0 && testDay<=daysInMonth(month1))
return testDay;
if(month1==2 && testDay==29 && isLeapYear())
return testDay;
cout<<\"invalid day(\"<<testDay<<\")set to 1\ \";
return 1;
}
// count and return number of days in month
int Date::daysInMonth( int m ) const
{
if(isLeapYear()&&m==2)
return 29;
static const int daysPerMonth1[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
return daysPerMonth1[m];
}
// check for leap year
bool Date::isLeapYear()const
{
if ( year1 % 400 == 0 || ( year1 % 4 == 0 && year1 % 100 != 0 ) )
return true;
else
return false;
}
// date converter function
int Date::convertDDToDDD() const
{
int ddd1 = 0;
for(int i=1;i<month1;i++)
ddd1+=daysInMonth(i);
ddd1+=day1;
return ddd1;
}
// setting month day from day
void Date::setMMDDFromDDD(int ddd1)
{
int dayTotal1=0;
int m;
// iterate months and check if total days plus month days is less than ddd1
for(m=1;m<=2&&(dayTotal1+daysInMonth(m))<ddd1;m++)
dayTotal1+=daysInMonth(m);
// set month
setMonth11(m);
// set day
setDay11(ddd1-dayTotal1);
}
// convert given month number to corresponding month name
string Date::convertMMToMonth(int mm)const
{
static const string months1[]={\" \",\"January\",\"February\",\"March\",\"April\",\"May\",\"June\",\"July\",\"August\",\"September\",\"October\",\"November\",\"december\"};
return months1[mm];
}
// set month function
void Date::setMMFromMonth(string m1)
{
bool matchFound=false;
// check for month match
for(int k=1;k<=12&&!matchFound;k++)
{
string tempMonth1=convertMMToMonth(k);
if(tempMonth1==m1)
{
// set month if match is found
setMonth11(k);
matchFound=true;
}
}
// else set month to 1
if(!matchFound)
{
cout<<\"invalid month name(\"<<month1<<\")month set to 1\ \";
setMonth11(1);
}
}
// year converter
int Date::convertYYYYToYY()const
{
return (year1>=2000?year1-2000:year1-1900);
}
// other yer converter function
void Date::setYYYYFromYY(int yy)
{
year1=(yy<7?yy+2000:yy+1900);
}
//Main.cpp
// input output library
#include <iostream>
using std::cout;
using std::endl;
#include \"Date.h\"
int main()
{
// calling parameterized constructors
Date date1( 252,1999 );
Date date2( 2,25,04 );
Date date3( \"September\", 1, 2000 );
// print dates
Date date4;
date1.print11();
date2.print11();
date3.print11();
date4.print11();
// print date to years
cout << \'\ \';
date1.printDDDYYYY11();
date2.printDDDYYYY11();
date3.printDDDYYYY11();
date4.printDDDYYYY11();
// print month to date to years
cout << \'\ \';
date1.printMMDDYY11();
date2.printMMDDYY11();
date3.printMMDDYY11();
date4.printMMDDYY11();
// print final dates
cout << endl;
date1.printMonthDDYYYY11();
date2.printMonthDDYYYY11();
date3.printMonthDDYYYY11();
date4.printMonthDDYYYY11();
return 0;
}
/*
output:
invalid day(193)set to 1
3/1/1999
3/25/2004
9/1/2000
10/11/2016
60 1999
85 2004
245 2000
285 2016
03/0199
03/2504
09/0100
10/1116
March 1,1999
March 25,2004
September 1,2000
October 11,2016
date object destructor for date10/11/2016
date object destructor for date9/1/2000
date object destructor for date3/25/2004
date object destructor for date3/1/1999
*/
