How to compare current date with selected date in android with java

Question

I am taking current date using the code like below

long millis=System.currentTimeMillis();
java.sql.Date date=new java.sql.Date(millis);

And I am selecting date using

CalendarView cal.setOnDateChangeListener(new OnDateChangeListener() {
            @Override
            public void onSelectedDayChange(CalendarView view, int year, int month, int dayOfMonth)

String s = +year + " : " + (month + 1) + " : " +dayOfMonth ;

and passing it on next activity as--

Intent in = new Intent(MainActivity.this, sec.class);
in.putExtra("TextBox", s.toString());
startActivity(in);

I want to check here if user selected previous date from current date then give a message and don't go on next activity.

Answer 1

Use SimpleDateFormat:

If your date is in 31/12/2014 format.

String my_date = "31/12/2014"

Then you need to convert it into SimpleDateFormat

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date strDate = sdf.parse(my_date);
if (new Date().after(strDate)) {
    your_date_is_outdated = true;
}
else{
    your_date_is_outdated = false;
}

or

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date strDate = sdf.parse(my_date);
if (System.currentTimeMillis() > strDate.getTime()) {
    your_date_is_outdated = true;
}
else{
    your_date_is_outdated = false;
}