Date without time doesn't hide seconds

Question

I'm using Joda Time to remove seconds from a date.

Firstly, I have this kind of Date:

Thu Nov 05 00:00:00 CET 2020

I pick this date from a local db using this method:

public static Date dateTimeFromString(String s) {

    String pattern = "yyyy-MM-dd";
    SimpleDateFormat sdf = new SimpleDateFormat(pattern);
    Date d= null;
    try {
        d = sdf.parse(s);
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return d;

From this date I would reach a form like this:

Thu Nov 05 CET 2020

or even better like this:Thu Nov 05 2020.

Now, I'm trying to use this method from Joda Time:

private Date dateWitoutTime(Date date){
    return new LocalDate(date).toDate();
}

but still getting

Thu Nov 05 00:00:00 CET 2020

Any help? Thank you.

Answer 1

Do not contaminate the clean java.time API with the legacy error-prone java.util date-time API. You can do it as follows using the modern date-time API:

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

public class Main {
    public static void main(String[] args) {
        LocalDateTime now = LocalDateTime.now();
        System.out.println(now.format(DateTimeFormatter.ofPattern("dd-MMM-yyyy HH:mm", Locale.ENGLISH)));
        System.out.println(now.format(DateTimeFormatter.ofPattern("EEE MMM dd uuuu", Locale.ENGLISH)));

        DateTimeFormatter dtfInput = DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss z uuuu", Locale.ENGLISH);
        ZonedDateTime givenDateTime = ZonedDateTime.parse("Thu Nov 05 00:00:00 CET 2020", dtfInput);

        DateTimeFormatter dtfOutput = DateTimeFormatter.ofPattern("EEE MMM dd z uuuu", Locale.ENGLISH);
        System.out.println(givenDateTime.format(dtfOutput));
        System.out.println(ZonedDateTime.now(ZoneId.of("Europe/Paris")).format(dtfOutput));
    }
}

Output:

04-Nov-2020 17:13
Wed Nov 04 2020
Thu Nov 05 CET 2020
Wed Nov 04 CET 2020

Learn more about the modern date-time API at Trail: Date Time.

Using the legacy API:

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

public class Main {
    public static void main(String[] args) throws ParseException {
        Date now = new Date();
        System.out.println(new SimpleDateFormat("dd-MMM-yyyy HH:mm", Locale.ENGLISH).format(now));
        System.out.println(new SimpleDateFormat("EEE MMM dd yyyy", Locale.ENGLISH).format(now));

        SimpleDateFormat sdfInput = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy", Locale.ENGLISH);
        Date givenDateTime = sdfInput.parse("Thu Nov 05 00:00:00 CET 2020");

        SimpleDateFormat sdfOutput = new SimpleDateFormat("EEE MMM dd z yyyy", Locale.ENGLISH);
        sdfOutput.setTimeZone(TimeZone.getTimeZone("CET"));
        System.out.println(sdfOutput.format(givenDateTime));
        System.out.println(sdfOutput.format(now));
    }
}

Output:

04-Nov-2020 17:13
Wed Nov 04 2020
Thu Nov 05 CET 2020
Wed Nov 04 CET 2020