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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.text.SimpleDateFormat;
  4.  
  5. class Main
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		SimpleDateFormat sdf =  new SimpleDateFormat("dd/MM/yyyy");
  10. 		ArrayList<Date> dates = new ArrayList<Date>();
  11.  
  12. 		dates.add(sdf.parse("11/06/2013"));//Tuesday
  13. 		dates.add(sdf.parse("15/06/2013"));//Saturday
  14. 		dates.add(sdf.parse("17/06/2013"));//Monday
  15. 		dates.add(sdf.parse("18/06/2013"));//Tuesday
  16. 		dates.add(sdf.parse("22/06/2013"));//Saturday
  17. 		dates.add(sdf.parse("25/06/2013"));//Tuesday
  18.  
  19. 		HashMap counts = checkDay(dates);
  20. 		System.out.println(counts.get("Mon"));
  21. 		System.out.println(counts.get("Tue"));
  22.  
  23. 	}
  24.  
  25.  
  26. 	public static HashMap checkDay(ArrayList<Date> list)
  27. 	{
  28. 		HashMap counts = new HashMap();
  29. 		SimpleDateFormat sdf =  new SimpleDateFormat("EE");
  30. 		for(Date d : list)
  31. 		{
  32. 			String form = sdf.format(d);
  33. 			if(counts.containsKey(form))
  34. 				counts.put(form,((int)counts.get(form))+1);
  35. 			else
  36. 				counts.put(form,1);
  37. 		}
  38. 		return counts;
  39. 	}
  40.  
  41.  
  42. }
Success #stdin #stdout 0.1s 380928KB
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https://ideone.com/SdM5Tr
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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