Date parse

[anvi kon]

Hi,

I have a date like below, how would I parse it and get the daya month year.

SimpleDateFormat  dateval = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");

                  Date doj = dateval.parse(2010-01-16:12:50:05); 

but doj.getday() is not working.

Can anyone help me in this case?

Thanks,

[Greg Charles]

It works for me, assuming:

1. You enclose the date string in double quotes. Otherwise, it won't compile.
2. Take out the colon between the date and time. Otherwise, it won't parse.
3. Use doj.getDay() not doj.getday(). Again, it won't compile otherwise.

That returns 6, which means that the date is on a Saturday.

Also that's a deprecated call. The new Java specs say to use a Calendar rather than calling the functions on Date directly. I believe those methods have been deprecated for nearly 10 years already.

[anvi kon]

thanks for your reply.

I have tried to use like bleow using Calendar.

SimpleDateFormat sf = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");
ParsePosition pos = new ParsePosition(0);
Date mydate = sf.parse("2010-01-16 12:50:05",pos); 
Calendar myCal = Calendar.getInstance();
myCal.setTime(mydate);

//output
int yy = myCal.get(Calendar.YEAR);
int mm = myCal.get(Calendar.MONTH);
int ww = myCal.get(Calendar.DAY_OF_WEEK);

It didn't work correctly.
I want the whatever the input string to be parsed(ie :2010-01-16 12:50:05)

thanks

[Rob Spoor]

anvi kon wrote:It didn't work correctly.

ItDoesntWorkIsUseless. What do you expect, and what do you get? You do know that the calendar months start at 0, not 1? So if mm is 0 then that means January. You should compare the return value against Calendar.JANUARY, Calendar.FEBRUARY, ..., Calendar.DECEMBER. The day of week is likewise just a number from Calendar.SUNDAY to Calendar.SATURDAY, inclusive.

To get a month starting at 1 just do a little calculation:

// this code will always work even if Calendar.JANUARY changes from 0 to anything else
int mm = myCal.get(Calendar.MONTH) - Calendar.JANUARY + 1; // mm is now 1
int dd = myCal.get(Calendar.DAY_OF_MONTH); // d is now 16

[anvi kon]

thanks,
But I except this way.

SimpleDateFormat sf = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");   
ParsePosition pos = new ParsePosition(0);   
String DataString = "2010-01-16 12:50:05"

If I pass any DataString

Date mydate = sf.parse(DataString,pos);    
Calendar myCal = Calendar.getInstance();   
myCal.setTime(mydate);  

Here I am setting the value with mydate

 

//output
int yy = myCal.get(Calendar.YEAR); //except the value as 2010

int mm = myCal.get(Calendar.MONTH); //except the value as 01
for this one I am getting as 0

int ww = myCal.get(Calendar.DAY_OF_WEEK); //except the value as 16
for this one Iam getting as 5

hopefully, now you undesryand my problem.

[Paul Clapham]

Yes, I think I understand your problem... you don't know the difference between the day of the week (e.g Saturday) and the day of the month (e.g. the 16th).

[Rob Spoor]

And I already told you why you got 0 (Calendar.JANUARY) for the month. I also showed you how to fix both issues.

[anvi kon]

ok, thanks,


In the example, If I am passing the datatstring as "2010-06-16 12:50:05" then

int mm = myCal.get(Calendar.MONTH)

this should give me month as 6 , why is it giving as 0.

what should I do to get the month as 6 ? which should be a dynamic value.

Can anyone answer my question?

thanks

[Rob Spoor]

mm is minutes, not months. That's MM - capital M.

And again, as I said before, you will not get 6 but 5. Subtract Calendar.JANUARY, then add 1 to get 6.

[anvi kon]

thanks,

But for june 06, I have done like below as you said, then still I am getting the value as 1.

int iMonth=ca1.get(Calendar.MONTH) - Calendar.JANUARY + 1;

Still result is 1

what I have to do to get june 06? Do I have to add 6 or 1?

Please let me know

thanks.

[Paul Clapham]

Rob Prime wrote:mm is minutes, not months. That's MM - capital M.

Apparently you missed the significance of this (or just missed it entirely). It's referring to your parse string, not your Calendar-hacking code.

[Rob Spoor]

Check your input string. In almost all code you've given the date part is 2010-01-16 - January 16th. That would explain the 1 for the month.