How to convert from Date(10-Oct-2014 00:00:00) to String in Java

Question

I want to compare two date values in Java

Date date1=10-Oct-2014 00:00:00(value fetched from DB)
Date date2=10-Oct-2014 00:00:00(value fetched from DB)

How do I convert this date values into String format in Java so that I cant compare them or else is there any way I can compare these dates.

Why you do not use the `compareTo` method from `java.util.Date`? — Jens, Nov 13 '14 at 13:57

nano_nano · Accepted Answer · 2014-11-13T14:02:02.690

2

I would compare the long values of both dates like this: if the dates are nullable dont forgett the nullcheck!

if (date1!=null && date2 != null){
   if (date1.getTime() == date2.getTime()){
      System.out.println("Dates are equal");
   }
}

There is no need to cast the Date objects to String objects.

edited Nov 13 '14 at 14:02

answered Nov 13 '14 at 13:56

nano_nano

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why not `date1.equals(date2))`? – assylias Nov 13 '14 at 13:59
This isn't going to work as you are comparing the reference rather than the actual date object. – SMA Nov 13 '14 at 14:02
1

never ever! getTime returns long not Long. Using == is absolutly ok – nano_nano Nov 13 '14 at 14:04

score 0 · Answer 2 · answered Nov 13 '14 at 14:00

0

You should be using compareTo method for less than or equal or greater than. You could do it like:

 int dateComparison = date1.compareTo(date2);
 if (dateComparison  == 0) {
     //both dates are equal
 } else if (dateComparison  < 0) {
     //date2 is greater
 } else {
     //date1 is greater
 }

if you are just looking for equality, you could use equals method on date like below:

 if (date1.equals(date2)) {
    //two dates are equal
 }

answered Nov 13 '14 at 14:00

SMA

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instead of `date1.compareTo(date) < 0` you can use `date1.before(date2)`. – assylias Nov 13 '14 at 14:02

How to convert from Date(10-Oct-2014 00:00:00) to String in Java

2 Answers2