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Hello everybody!

Im new in java, specially with Date in java.

I want to make a count login per day with java.

Ex: if im login at the first time in anytime its will count = 1, if im relogin when the day isn't pass count still keep = 1. But if im login when the day is passed like after 00:00Am count will count = 2.

Sorry about my english is so bad, but i hope you can understand and help me at this point.

Thanks.
Posted

Please use Calendar ( aka GregorianCalendar) for this.

Here is a great tutorial from Lars Vogel about how to use the types Calendar/Date.

http://www.vogella.com/tutorials/JavaDateTimeAPI/article.html[^]

http://docs.oracle.com/javase/tutorial/datetime/iso/[^]

You should format the datetime to a date only format and compare it to another date value that you have from last login.

have fun!
 
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As TorstenH. points out, just compare the current day to another date value that you have from last login.
Java
		Calendar lastLoginDay = //get the last login day
		Calendar currentDay = Calendar.getInstance();// current day
if (currentDay.get(Calendar.DAY_OF_YEAR) == lastLoginDay.get(Calendar.DAY_OF_YEAR)){
	//"Hey! it´s the same day!"
}else{
    	//"The day has changed!"
       //add the counter.
	lastLoginDay = Calendar.getInstance();
}
 
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Comments
Nagy Vilmos 10-Oct-14 4:14am    
Just a few small comment on that:
0. if the user logs in once a year then the count will not be reset.
1. if the login is ms before midnight then the wrong login date will be recorded.

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