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日期安排,协助日期格式
原标题:Sorting of Dates with the help for Date formatter
  • 时间:2011-09-17 05:24:47
  •  标签:
  • android

I have a problem that I want to Sort the String Arraylist of Dates with format= 2011-07-18T10:39:31.855Z with the help of Date formatter in java. But don t know how to do that? Can any one tell me How to use Date formatter with custom format for sorting of data?

请帮助我谈谈这一问题。

提前感谢。

最佳回答
问题回答

Just format all your dates in a format where sorting would make sense: e.g. year first, then 2-digit month, etc. Example format string: "yyyy-MM-dd hh:mm:ss".

Then just sort the strings, e.g. by using a TreeSet.

你们可以使用这种方式。

 ArrayList arrayList = new ArrayList();

 //Add elements to Arraylist
 arrayList.add("1");   //1->> you can add you data format by function or static
 arrayList.add("3");
 arrayList.add("5");
 arrayList.add("2");
 arrayList.add("4");

/*
 To sort an ArrayList object, use Collection.sort method. This is a
 static method. It sorts an ArrayList object s elements into ascending order.
*/
 Collections.sort(arrayList);

 //display elements of ArrayList
  System.out.println("ArrayList elements after sorting in ascending order : ");
 for(int i=0; i<arrayList.size(); i++)
  System.out.println(arrayList.get(i));

http://digiassn.blogspot.com/2007/07/java-sorting-dates.html





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