Java sort List by date as String

Question

I have a list from the Type and I would like to sort this list by an element of date. I googled and I saw some solutions with comparable, but is there a possibility to do this

Answer 1

So if date is stored in varchar2 than firstly Convert them to an actual Date object,

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd h:m");
System.out.println(sdf.parse(dateFromDataBase));

and then do the comparing on date Objects

if(date1.compareTo(date2)>0){
// Do whatever you want to do 
}

Now coming to the sorting of List<SqlRow>

you can use comparator Interface as mentioned by @Srinivasu Talluri but if you are not interested in using these interfaces which literally make you life easy than you can use either bubble sort or Insertion sort and compare on the basis of dates as mentioned above

Answer 2

Collections.sort(Type, new Comparator<Type>() {
    @Override
    public int compare(Type o1, Type o2) {
          SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd h:m");
          Date d1 = sdf.parse(o1.date);
          Date d2 = sdf.parse(o2.date);
          return d1.compareTo(d2);
      }
  });