CODEWITHSUNDEEP
javadatedatetime
Gusti Arya
Gusti Arya

Reputation: 1301

Combining two Date instance to create date-time using Joda

I have two java.util.Date instances which is contain date value and time value. now I want to combine these values to create single java.util.Date instance representing the date and time.

here some example to make clear what I'd want :

      Date date = 2015-06-01;
      Date time = 22:30;

combine into :

     Date dateTime = 2015-06-01 22:30;

I do some search and I found this question Combining java.util.Dates to create a date-time which is similar with my current issue. But the chosen answer on that question is deprecated.

Upvotes: 4

Views: 4266

Answers (2)

Adrian Shum
Adrian Shum

Reputation: 40056

You can do it without JODA, by using Calendar

However, as you asked about JODA, here is the way to do in JODA:

// you want the date part from it
Date d = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").parse("2013-01-02 03:04:05");

// you want to time part from it
Date t = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").parse("2014-02-03 04:05:06");


LocalDate datePart = new LocalDate(d);
LocalTime timePart = new LocalTime(t);
LocalDateTime dateTime = datePart.toLocalDateTime(timePart);
Date result = dateTime.toDate();

// Or shrink the above 4 lines into one, as follow
// Date result = new LocalDate(d).toLocalDateTime(new LocalTime(t)).toDate();

System.out.println("result " + result);
// print out result Wed Jan 02 04:05:06 CST 2013

Upvotes: 6

Watermel0n
Watermel0n

Reputation: 241

Use a Calendar instead?

In particular, set(int year, int month, int date, int hourOfDay, int minute) and
if you want a Date, use getTime() ?

or convert the Date object to a Calendar object using the setTime(Date ..) function from the Calendar class, extract the values (day, hours, minute) using functions from the Calendar class?

Upvotes: 1

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