All I need is take date from user and display it in 4 forms: 

Name	Format	Example	Explanation
Default	M/D/Y	10/4/1998	This will look like the input from the Input function. Print the month, day, and year as integer values.
Two-Digit	mm/dd/yy	10/04/98	Fixed size format, in which the month, day, and year values are always 2 digits Some values may need to be padded with a leading zero, and year values always show the low 2 digits.
Long	month D, Y	Oct 4, 1998	This display format should show the abbreviated month name, then the day, and the full year. Month abbreviations are Jan, Feb, Mar, Apr, May, June, July, Aug, Sept, Oct, Nov, and Dec
Julian	DDD, Y	123, 2001	This displays the Julian Date format. 123 in the Year 2001 is actually May 3rd, 2001. Leading edge zeros are not required.

Can you tell me what is wrong with my code? #include  #include  #include  using namespace std; const int DEFAULTMONTH=1; const int DEFAULTDAY=1; const int DEFAULTYEAR=2000; class Date { //private members of the class private: int month; int day; int year; char format; static string months[12]; //public members of the class public: //Default constructor Date(); Date(int m, int d, int y); void Input(int &); void Show(); bool Set(int m, int d, int y); int GetMonth(); int GetDay(); int GetYear(); bool SetFormat(char f); void Increment(int numDays = 1); int Compare(const Date &d); string monthHelper(int); }; string Date::months[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; Date::Date() { month = DEFAULTMONTH; day = DEFAULTDAY; year = DEFAULTYEAR; format = 'D'; } Date::Date(int m, int d, int y) { //to get a valid date if (m < 1 || m > 12 || d < 1 || d > 31 || y < 1583) { month = DEFAULTMONTH; day = DEFAULTDAY; year = DEFAULTYEAR; } else { month = m; day = d; year = y; } format = 'D'; } void Date::Input(int &Pass1) { int d, y; cout<<"Enter Month: "; cin>>Pass1; cout<<"Enter Day: "; cin>>d; cout<<"Enter Year: "; cin>>y; if (Pass1 < 1 || Pass1 > 12 || d < 1 || d > 31 || y < 1583) { cout << "Invalid date entered. Using default date: 1/1/2000"< 12 || d < 1 || d > 31 || y < 1583) { return false; } return true; } int Date::GetMonth() { return month; } int Date::GetDay() { return day; } int Date::GetYear() { return year; } void Date::Increment(int numDays) { int total_days = numDays; while (total_days > 0) { int num_days_in_month = 28; if (month == 2) { if ((year % 400 == 0) || (year % 100 != 0 && year % 4 == 0)) { num_days_in_month = 29; } } else if (month == 4 || month == 6 || month == 9 || month == 11) { num_days_in_month = 30; } else { num_days_in_month = 31; } if (day + total_days <= num_days_in_month) { day += total_days; break; } else { total_days -= (num_days_in_month - day + 1); day = 1; } if (month == 12) { month = 1; year++; } else { month++; } } } string Date::monthHelper(int Num) { string mth; switch (Num) { case 1: mth = "January"; break; case 2: mth = "February"; break; case 3: mth = "March"; break; case 4: mth = "April"; break; case 5: mth = "May"; break; case 6: mth = "June"; break; case 7: mth = "July"; break; case 8: mth = "August"; break; case 9: mth = "September"; break; case 10: mth = "October"; break; case 11: mth = "November"; break; case 12: mth = "December"; break; } return mth; } int main() { bool status=false; int comparestatus=0; int Pass1; Date date1; date1.Input( Pass1); cout<