how to compare current day & month with given day & month in java

Question

I want to compare current date with the given date. Current date format will be (dd-MM-YYYY). I don't want to get the current year. Suppose today's date is 30-08-2016. I want to get only 30-08, I don't want current year 2016. The given date is 15-08 and 31-08. I did not get the current date like this 30-08. How can I get this and how can I compare? Here is my code which I have tried:

Date date1_aug, date2_aug, cur_date;

String cur_date_string, sDay, sMonth;

SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-YYYY");


Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH)+1;
int day = calendar.get(Calendar.DATE);

sDay = Integer.toString(day);
sMonth = Integer.toString(month);

cur_date_string = sDay+"-"+sMonth;

            try {
                cur_date = sdf.parse(cur_date_string);
            } catch (java.text.ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

another function:

        try{
                    date1_aug = sdf.parse("15-08");
                    date2_aug = sdf.parse("31-08");

                    if(cur_date.equals(date1_aug) || cur_date.after(date1_aug) || cur_date.before(date2_aug)){
                        textView_Amount_LateFee.setText(Config.fine_aug.get(1));
                    }


                }catch(ParseException ex){
                    ex.printStackTrace();
                }

If you want to compare the value of dd-MM (please ignore the date concept since it is not a complete date), you can compare the MM value and then dd value. — Long Ranger, Aug 30 '16 at 09:50
@tanzilamohita Please accept an Answer. I tried and failed to link [a duplicate question](http://stackoverflow.com/q/42656159/642706) here, but could not until an Answer is accepted. — Basil Bourque, Mar 07 '17 at 23:14

score 1 · Answer 1 · edited May 23 '17 at 12:17

`java.time.MonthDay`

Use modern date-time classes in the ThreeTenABP project, an Android adaptation of the back-port of the java-time classes built into Java 8 and later. Avoid the troublesome old legacy date-time classes.

These java.time classes include the MonthDay class to represent a month and a day-of-month without a year.

MonthDay md = MonthDay.of( 8 , 15 );

This class already implements the Comparable interface and its compareTo method. Also implements methods equals, isBefore, and isAfter. So, job done.

Determining the current MonthDay requires a time zone. For any given moment the date varies by time zone.

ZoneId z = ZoneId.of( "America/Montreal" );
MonthDay today = MonthDay.now( z );

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

Where to obtain the java.time classes?

Java SE 8 and SE 9 and later
- Built-in.
- Part of the standard Java API with a bundled implementation.
- Java 9 adds some minor features and fixes.
Java SE 6 and SE 7
- Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
- The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
- See How to use ThreeTenABP….

score 0 · Answer 2 · answered Aug 30 '16 at 09:56

0

Have you tried to use the same year in the dates you want to compare?

Just using Calendar, set the year to be the same in the two Date objects and after that compare them...

(Take care with the leap-years)

answered Aug 30 '16 at 09:56

pianista

108
8

Uma Kanth · Answer 3 · 2016-08-30T10:53:10.807

If you want to ignore the year, forget about using the date concept itself.

String given_date = "15-08";

String[] tokens = given_date.split("-");

int given_day = Integer.parseInt(tokens[0]);
int given_month = Integer.parseInt(tokens[1]);

Calendar c = Calendar.getInstance();

int now_month = c.get(Calendar.MONTH) + 1;
int now_day = c.get(Calendar.DATE);

System.out.println(given_day + " " + given_month + " " + now_day + " " + now_month);

if (now_month > given_month) {
    System.out.println("Before Today!");
} else if (now_month < given_month) {
    System.out.println("After Today!");
} else {
    if (now_day > given_day) {
        System.out.println("Before Today!");
    } else if (now_day < given_day) {
        System.out.println("After Today!");
    } else {
        System.out.println("Today!");
    }
}

score 0 · Answer 4 · answered Aug 30 '16 at 10:06

function to check dob( with current date)
/** dob should be in the format yyyy-MM-dd hh:mm:ss */
public static boolean isTodayBdy(String dob) {
    Date today = new Date();
    try {
        if(dob.length() > 1){
            Date dobDate = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").parse(dob);
            if ((today.getMonth() == dobDate.getMonth()) && (today.getDate() == dobDate.getDate())) {
                return true;
            }
        }
    } catch (ParseException e) {
        return false;
    }
    return false;
}

how to compare current day & month with given day & month in java

4 Answers4

`java.time.MonthDay`

About java.time

Linked