Question

I have two arrayLists namely readAllNames and anotherone is selectedNames.now i want to get the anotherlist which having the unSelectedNames .ex.

List<Name>readAllNames = {"a","b","c","d","e","f","g"};
List<Name>selectedNames = {"a","b"};

how can i get the: unSelectedNames {“c”,”d”,”e”,”f”,”g”} from readAllNames?

without Using remove() And removeAll()

Answer 1

List<String> unread = new ArrayList<String>();
for(String s : readAllNames ){
    if(!selectedNames.contains(s))
        unread.add(s);
}