Question

I have collection of object as Collection basics = periodic.getGeneratedBasic();
When iterate over this collection and get every object and cast it, i can extract date of every object.
Now at this point i want to check out in this collection of object which one is the smallness and biggest date.

Does any one know how to do that?

Date max;
Date min;
for(Object o:basics){
      Basic b = (Basic) o;
      Date temp;
      if(b.State=='U'){
           basicAList.add(ba);
           dateCollection.add(b.firstDateTime);
           temp= ;
           if(b.firstDateTime <)
     }
  }

Answer 1

Why not use Collections.sort() and then take the first/last entries? You can either use natural ordering, or specify your own Comparator.

Note this will sort the collection in-place. It won’t give you a new sorted collection.