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  1. import java.util.*;
  2. import java.text.SimpleDateFormat;
  3.  
  4. class Ideone
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 		Calendar past = Calendar.getInstance();
  9. 		past.set(Calendar.DAY_OF_MONTH, 25);
  10. 		past.set(Calendar.MONTH, 2);
  11. 		past.set(Calendar.YEAR, 2016);
  12. 		System.out.println("past = " + new SimpleDateFormat("yyyy-MM-dd").format(past.getTime()));
  13. 		System.out.println("days = " + daysSince(past));
  14. 	}
  15.  
  16. 	public static int daysSince(Calendar pastDate) {
  17.     	Calendar presentDate = Calendar.getInstance();
  18.  
  19.     	int daysSince = 0;
  20.  
  21.     	while (pastDate.before(presentDate)) {
  22.         	pastDate.add(Calendar.DAY_OF_MONTH, 1);
  23.         	daysSince++;
  24.     	}
  25.     	return daysSince;
  26. 	}
  27. }
Success #stdin #stdout 0.16s 322048KB
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Standard input is empty
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past = 2016-03-25
days = 32
https://ideone.com/nEbV0U
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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