Question
In C++, please finish A template cpp file will be given. The template file already implements the functionality to print out calendar on screen. understand
In C++, please finish A template cpp file will be given. The template file already implements the functionality to print out calendar on screen. understand the template file and implement / modify/add functions for program to work. Get last two functions to work bool print_calendar(int year, string fileName) and void print_calendar(int month, int year, ofstream& output)
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#include
#include
#include
#include
using namespace std;
void get_input(int& month, int& day, int& year);
// postcondition: get the input of a date. If the date is NOT valid, will prompt the user to reenter a valid date
void get_input(int& month, int& year);
// postcondition: get the input of a month. If the month is NOT valid, will prompt the user to reenter a valid month
void get_input(int& year);
// postcondition: get the input of a year. If the date is NOT valid, will prompt the user to reenter a valid year.
// the year must be later than 1582 inorder to be valid
bool isValid(int month, int day, int year);
// postcondition: return true if the specified date is valid, false otherwise
bool isValid(int month, int year);
// postcondition: return if the specified month is valid, false othewise
bool isValid(int year);
// postcondition: return true if the given year is valid. false otherwise
// the given year is valid if it is later than year 1582
void print_calendar(int month, int day, int year);
// precondition: the date is a valid date
// postcondition: print out the day of week for specified date. For example, print_calendar(10, 15, 2014) will print out
// October 15, 2014 is Wednesday
void print_calendar(int month, int year);
// precondition: the month is a valid month, and the year is a valid year
// postcondition: print out the calendar of specified month
void print_calendar(int year);
// precondition: the year is a valid year
// postcondition: print out the calendar of specified year
string monthName(int month);
// precondition: the month value is 1, 2, .., 12
// postcondition: return a string that represents the name of the month. If month is 1, the name is "January" and so on
int daysInMonth(int month, int year);
// precondition: the month and year are valid
// postcondition: return the number of days in the given month in given year
void menu();
// postcondition: the menu is displayed for choose
bool isLeapYear(int year);
// precondition: the year is valid
// postcondition: return true if the year is leap year; false otherwise
int getCenturyValue(int year);
// precondition: the year is valid
// postcondition: return the century value of the given year.
int getYearValue(int year);
// precondition: the year is valide
// postcondition: return the year value of the given year.
int getMonthValue(int month, int year);
// precondition: the month and year are valide
// postcondition: return the month value of the given month in given year.
int dayOfWeek(int month, int day, int year);
// precondition: the date is valid
// postcondition: return 0 if the date is Sunday, 1 if the date is Monday and so on
string dayOfWeek(int day);
// preconditon: day has integer value 0, 1, 2, 3, 4, 5, or 6
// postcondition: the name of the day of week is returned as a string.
// If day has value 0, then SUNDAY is returned; 1, then MONDAY is returned
// and so on
//************************************************************************
// You may have implemented all functions above for lab five/project five
// Implementation all functions above are given in this file
// They are the solution for Project Five and more.
// You must implement the functions below. Also, you must change the menu
// option accordingly and add one more case in main function
// ***********************************************************************
bool print_calendar(int year, string fileName);
// precondition: year is a leagal year, and fileName is the name of output file
// postcondition: if the calendar of the given year is successfully output to the file
// with name fileName, return true; false otherwise
void print_calendar(int month, int year, ofstream& output);
// precondition: month is a legal month in a given legal year and output is an ofstream
// that connected to a successfully opened file
// postcondition: the calendar of the given month of given year is output to a file
// through the output.
int main()
{
char choice;
int day, month, year;
do
{
system("CLS");
menu();// display menu by calling menu function
cout
cin>>choice;// get user's choice
switch(choice)
{
case '1': // will query a date.
get_input(month, day, year);
print_calendar(month, day, year);// print out the day of week of specified date
break;
case '2': // print out the calendar of a given month.
get_input(month, year);
print_calendar(month, year);//print out the calendar of specified month
break;
case '3': // print out the calendar of a given year.
get_input(year);
print_calendar(year);// print out the calendar of specified year
break;
case '4': // print out the calendar of specified year to yourname.txt file
// you implement this ******************
break;
case '5': // quit the program.
cout
break;
default: // other choices that are not the options on menu.
cout
break;
}
cout
system("pause");
}while (choice != '5');
return 0;
}
// you implement all function stubs here
void menu()
{
cout
cout
cout
cout
cout
// add one more options here. Notice that the quit option becomes option 5 now
cout
cout
}
void get_input(int& month, int& day, int& year)
{
cout
cin >> month >> day >> year;
while(!isValid(month, day, year)) // as long as the date is NOT valid, keep asking to reenter the date
{
cout
cin >> month >> day >> year;
}
}
void get_input(int& month, int& year)
{
cout
cin >> month >> year;
while(!isValid(month, year)) // as long as the month is NOT valid, keep asking to reenter the month
{
cout
cin >> month >> year;
}
}
void get_input(int& year)
{
cout
cin >> year;
while(!isValid(year)) // as long as the year is NOT valid, keep asking to reenter the year
{
cout
cin >> year;
}
}
bool isValid(int month, int day, int year)
{
// notice that this implementation is different from the one I talked in class
// Questions 1: Please answer (YES/NO) to indicate if you understand this implementation
// by adding one line of comments at beginning of the file. This worth 1 point
bool result = true; // temporary assume that the result is true
switch(month) // update result based on day
{
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
result = day >= 1 && day
break;
case 4: case 6: case 9: case 11:
result = day >= 1 && day
break;
case 2:
if(isLeapYear(year))
result = day >= 1 && day
else
result = day >= 1 && day
break;
}
return result && isValid(month, year); // day is valid and (month and year are valid)
}
bool isValid(int month, int year)
{
return month >= 1 && month 1582; // month is between 1 and 12 and year is later than 1582
}
bool isValid(int year)
{
return year > 1582; // year is later than 1582
}
bool isLeapYear(int year)
{
return (year % 400 == 0 || year % 4 == 0 && year % 100 != 0); // book's instruction
}
int getCenturyValue(int year)
{
return 2 * ( 3 - (year / 100) % 4 ) ; // book's instruction
}
int getYearValue(int year)
{
return year % 100 + year % 100 / 4; // book's instruction
}
int getMonthValue(int month, int year) // book's instruction
{
int result;
switch(month)
{
case 1:
if(isLeapYear(year))
result = 6;
else result = 0;
break;
case 2:
if(isLeapYear(year))
result = 2;
else
result = 3;
break;
case 3: case 11:
result = 3;
break;
case 4: case 7:
result = 6;
break;
case 5:
result = 1;
break;
case 6:
result = 4;
break;
case 8:
result = 2;
break;
case 9:case 12:
result = 5;
break;
default: // case 10
result = 0;
break;
}
return result;
}
int dayOfWeek(int month, int day, int year) // book's instruction
{
if(!isValid(month, day, year)) return -1;
return (getCenturyValue(year) + getMonthValue(month, year) + getYearValue(year)+ day)%7;
}
void print_calendar(int month, int day, int year)
{
// Questions 2: Add one line of comments at the beginning of the file to indicate
// if you understand what the following if statement does? (YES/NO)
// This worth 1 point
if(!isValid(month, day, year)){ // if the date is NOT valid, print out error message and return
cout
return;
}
cout
}
void print_calendar(int month, int year)
{
if(!isValid(month, year)){ // if the month is NOT valid, print out error message and return
cout
return;
}
// print out the month and year
cout
// print out day names
cout
int spaceCount = dayOfWeek(month, 1, year);
// print out spaces
for(int i = 0; i
cout
// calculate the days in the month
int days = daysInMonth(month, year);
// print out all days
for(int j = 1; j
{
cout
if((spaceCount + j) % 7 == 0) // go to new line for a new week
cout
}
}
void print_calendar(int year)
{
if(!isValid(year)){ // if the year is NOT valid, print out error message and return
cout
return;
}
for(int i = 1; i
{
print_calendar(i, year); // print out ith month
cout
}
}
string monthName(int month)
{
string result;
switch(month)
{
case 1:
result = "January";
break;
case 2:
result = "Febraury";
break;
case 3:
result = "March";
break;
case 4:
result = "April";
break;
case 5:
result = "May";
break;
case 6:
result = "June";
break;
case 7:
result = "July";
break;
case 8:
result = "August";
break;
case 9:
result = "September";
break;
case 10:
result = "October";
break;
case 11:
result = "November";
break;
case 12:
result = "December";
break;
default:
result = "Not valid month";
break;
}
return result;
}
string dayOfWeek(int day)
{
string result;
switch(day)
{
case 0:
result = "Sunday";
break;
case 1:
result = "Monday";
break;
case 2:
result = "Tuesday";
break;
case 3:
result = "Wednesday";
break;
case 4:
result = "Thursday";
break;
case 5:
result = "Friday";
break;
case 6:
result = "Saturday";
break;
default:
result = "Invalid date";
break;
}
return result;
}
int daysInMonth(int month, int year)
{
// Question 3: Add one line of comment at the beginning to tell me
// if this implementation is the same as yours in Proj five
// If not, do you understand this? This worth 1 point
int result;
switch(month)
{
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
result = 31;
break;
case 4: case 6: case 9: case 11:
result = 30;
break;
case 2:
if(isLeapYear(year))
result = 29;
else result = 28;
break;
default:
result = -1;
break;
}
return result;
}
bool print_calendar(int year, string fileName)
{
// if year is not valid, print out error message and return false
// declare a locat ofstream variable and open file to write
// if file open failed, print out error message and return false
// use for loop to print out 12 months to the file
// close file
// return true
}
void print_calendar(int month, int year, ofstream& output)
{
// if the month is NOT valid, print out error message and return
// print out the month and year
// print out day names
// calculate spaces before the first day of the month
// print out spaces
// calculate the days in the month
// print out all days, using a for loop
// two more new lines
// Note this function is very similar to the one print to screen
}
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sample of output should be like this:
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Objects And Databases International Symposium Sophia Antipolis France June 13 2000 Revised Papers Lncs 1944
Authors: Klaus R. Dittrich ,Giovanna Guerrini ,Isabella Merlo ,Marta Oliva ,M. Elena Rodriguez
2001st Edition
3540416641, 978-3540416647
