How to Sort an Arraylist of Date in ascending and descending order which is in String format

Question

I have arrayLists of Dates which is in String format then how can I sort this arraylists,

ArrayList aryBeginDate;
ArrayList aryDu         


        

Answer 1

Very Simple Answer:For Ascending just call this method:

Collections.sort(mArrayList, new OutcomeAscComparator());
public class OutcomeAscComparator implements Comparator
    {
        public int compare(Select left, Select right) {
            return left.getOutcome().compareTo(right.getOutcome());
        }
    }


Select is my model, For Descending: 

Collections.sort(mArrayList, new OutcomeDescComparator());
public class OutcomeDescComparator implements Comparator
    {
        public int compare(Select left, Select right) {
            return right.getOutcome().compareTo(left.getOutcome());
        }
    }

Please dont forget to refresh your list view IF you want your list to be AScending and Descending

                mListView.invalidateViews();

                mAdapter.notifyDataSetChanged();