A simple applet for displaying dates, mainly to learn the usage of static variables

// Design a simple date class, and write a main program to demonstrate its usage. The date has different display formats,
// For example, if yyyy, mm, and DD are set to represent year, month, and day, the common format is yyyy. Mm. DD.
// Mm/DD/YYYY. The common format in Europe is dd-mm-yyyy. Generally, multiple date objects in the same program are unified.
// Display format. Therefore, the format attribute should define a static data member.
/*
* Auther starshus
*
* Date 04/11/20
*/
// 5.8.2
Public class date
{
Private int year = 2000, month = 1, Day = 1; // define and initialize the variable
Private string greet = "the date is:"; // string that describes the date
Private Static string format = "."; // display format, static variable
Public void setdate (INT year, int month, int day) // set the date
{
This. Year = year;
This. month = month;
This. Day = Day;
}
Public void setgreet (string greet) // you can specify a date string.
{
This. Greet = greet;
}
Public static void setformat (string note) // set the format, which should also be a static method
{
Format = note;
}
Public String getdate () // return date
{
Return (GREET + year + format + month + format + Day );
}
Public static void main (string [] ARGs) // demonstrate the main method of class usage
{
Date = new date (); // create an object
Date. setdate (maid, 28 );
System. Out. println (date. getdate ());

Date. format = "/"; // set the format
Date usadate = new date ();
Usadate. setdate (maid, 13 );
Usadate. setgreet ("this is U. S. A format :");
System. Out. println (usadate. getdate ());

Date. format = "-"; // set the format
Date europedate = new date ();
Europedate. setdate (maid, 13 );
Europedate. setgreet ("this is europedate :");
System. Out. println (europedate. getdate ());
}
}