Get the date between two dates

[Java]
/**
* TestDay1.java
* Copyright (C) 2012
* Creation: cuiran 2012-09-24 10:18:52
*/
Package com. wpn. test;
 
Import java. text. ParseException;
Import java. text. SimpleDateFormat;
Import java. util. Date;
 
/**
* TODO
* @ Author cuiran
* @ Version TODO
*/
Public class TestDay1 {
 
Public static void twoDays (String str1, String str2 ){
SimpleDateFormat df = new SimpleDateFormat ("yyyy-MM-dd ");
Date date1;
Date date2;
Try {
Date1 = df. parse (str1 );
Date2 = df. parse (str2 );
Int s = (int) (date2.getTime ()-date1.getTime ()/(24*60*60*1000 ));
If (s> 0 ){
For (int I = 0; I <= s; I ++ ){
Long todayDate = date1.getTime () + I * 24*60*60*1000;
Date tmDate = new Date (todayDate );
/**
* Yyyy-MM-dd E: Wednesday
*/
System. out. println (new SimpleDateFormat ("yyyy-MM-dd"). format (tmDate ));
}
}
} Catch (ParseException e ){
System. out. println ("format error ");
}
}
 
/**
* TODO
* @ Param args
*/
Public static void main (String [] args ){
// TODO Auto-generated method stub
TestDay1.twoDays ("2012-09-01", "2012-09-24 ");
}
 
}

It is worth noting that the above method is problematic.

In this way, a problem occurs:

TestDay1.twoDays ("2012-02-01", "2012-02-28 ");

The correct method is as follows:

[Java]
/**
* DateTest. java
* Copyright (C) 2012
* Creation: cuiran 2012-09-24 10:26:29
*/
Package com. wpn. test;
 
Import java. text. ParseException;
Import java. text. SimpleDateFormat;
Import java. util. Date;
 
/**
* TODO
* @ Author cuiran
* @ Version TODO
*/
Public class DateTest {
 
String dateFormat = "yyyy-MM-dd ";
SimpleDateFormat format = new SimpleDateFormat (dateFormat );

Public static void main (String [] args ){
DateTest t = new DateTest ();

String date1 = "2012-02-01 ";
String date2 = "2012-03-04 ";

T. process (date1, date2 );
}

Private void process (String date1, String date2 ){
If (date1.equals (date2 )){
System. out. println ("two dates are equal! ");
Return;
}

String tmp;
If (date1.compareTo (date2)> 0) {// ensure that the date of date1 is not later than date2
Tmp = date1;
Date1 = date2;
Date2 = tmp;
}

Tmp = format. format (str2Date (date1). getTime () + 3600*24*1000 );

Int num = 0;
While (tmp. compareTo (date2) <0 ){
System. out. println (tmp );
Num ++;
Tmp = format. format (str2Date (tmp). getTime () + 3600*24*1000 );
}

If (num = 0)
System. out. println ("two dates are adjacent! ");
}


Private Date str2Date (String str ){
If (str = null) return null;

Try {
Return format. parse (str );
} Catch (ParseException e ){
E. printStackTrace ();
}
Return null;
}
}