Compare two date of type String

Question

i have in my DB a date in this format 2016-03-11 09:20:22 how i can do if i want to compare with today date? I try to make this but i think that is not efficient:

private int getDayOfYear(String dateString) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = sdf.parse(dateString);
        GregorianCalendar greg = new GregorianCalendar();
        greg.setTime(date);
        return greg.get(greg.DAY_OF_MONTH);
    }
    private int getMonth(String dateString) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = sdf.parse(dateString);
        GregorianCalendar greg = new GregorianCalendar();
        greg.setTime(date);
        return greg.get(greg.MONTH);
    }
    private int getYear(String dateString) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = sdf.parse(dateString);
        GregorianCalendar greg = new GregorianCalendar();
        greg.setTime(date);
        return greg.get(greg.YEAR);
    }

Now i apply on today date and on db date this method, there is another way to compare two date?

Also a duplicate of [this](http://stackoverflow.com/q/19109960/642706) and [this](http://stackoverflow.com/q/15925509/642706) and others. Please search Stack Overflow thoroughly before posting. — Basil Bourque, Apr 15 '16 at 07:54

Rahul Tripathi · Accepted Answer · 2016-04-15T07:44:57.717

2

You can simply use the compareTo method:

date1.compareTo(date2);

There are other methods as well like before or after which you can use for Dates.

edited Apr 15 '16 at 07:44

answered Apr 15 '16 at 07:43

Rahul Tripathi

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Doesn't this make it so the same date but different times are different? Didn't see anything on the documentation for that. – dquijada Apr 15 '16 at 07:44
@dquijada:- It will take care of the time as well if the date is same. – Rahul Tripathi Apr 15 '16 at 07:47
But as I understand she wants to compare only dates, not times. Might be wrong tho. – dquijada Apr 15 '16 at 07:48
@dquijada:- I went with the first and the last line which says: `i have in my DB a date in this format 2016-03-11 09:20:22 how i can do if i want to compare with today date?` and the part `there is another way to compare two date?` – Rahul Tripathi Apr 15 '16 at 07:49
1

@dquijada if so `SimpleDateFormat` should be `yyyy-MM-dd` but this is the correct way to compare dates – Jordi Castilla Apr 15 '16 at 07:49
Notice that she only returns day of month, month and year. She probably copied the date format stuff from some other example. – dquijada Apr 15 '16 at 07:53
dates to be compared are of type String – Filomena Del Sorbo Apr 15 '16 at 08:52

Compare two date of type String

1 Answers1