Date comparision giving false output

Question

I want to compare two dates and based on the solution provided in link How to compare dates in Java?, I used the below code.

SimpleDateFormat sdf = new SimpleDateFormat("dd-mm-yyyy");
    String strDate1 = "21-01-2021";
    String strDate2 = "01-02-2021";
    Date date1 = sdf.parse(strDate1);
    Date date2 = sdf.parse(strDate2);
    if (date1.after(date2)) {
        System.out.println(strDate1 + " is after " + strDate2);
    }

    if (date1.before(date2)) {
        System.out.println(strDate1 + " is before " + strDate2);
    }

    if (date1.equals(date2)) {
        System.out.println("Both are same date");
    }

The output I get is 21-01-2021 is after 01-02-2021 which is wrong. Jan 21 2021 is before Feb 01 2021. Can someone please help me to resolve this. Thank you!!

tzortzik · Accepted Answer · 2021-02-09T18:09:55.217

4

You use the wrong format for month. mm represents minutes. It should be dd-MM-yyyy

Also, another way to do the comparison is to use date.compareTo(anotherDate) which returns and negative value if date is before another, 0 if date = another and a positive value if date is after another.

edited Feb 09 '21 at 18:09

answered Feb 09 '21 at 18:04

tzortzik

4,993
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score 0 · Answer 2 · answered Feb 09 '21 at 18:11

0

try to use this line as a SimpleDateFormat

SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy", Locale.ENGLISH);

answered Feb 09 '21 at 18:11

Elyess Eleuch

141
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5

score 0 · Answer 3 · answered Feb 09 '21 at 18:16

0

SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy") will do the job.

answered Feb 09 '21 at 18:16

Amit

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Date comparision giving false output

3 Answers3