is it possible to make dynamic ArrayList, for an example I have
List<String> Group = new ArrayList<String>();
I want to have dynamic arraylist like Group1, Group2, Group3 and so on... How do achieve this inside iteration?
for (int i = 0; i < n; i++) {
List<String> Group+i = new ArrayList<String>(); // generate group-n
}
any suggestion?
Instead of list use arraylist and you can proceed ahead.
ArrayList<ArrayList<Integer>> outer = new ArrayList<ArrayList<Integer>>();
ArrayList<Integer> inner = new ArrayList<Integer>();
Do you mean something like this?
List<List<String>> collectionOfLists = new ArrayList<List<String>>();
for(int i = 0; i < yourVar; i++){
collectionOfLists.add(new ArrayList<String>());
}
You can then have any number of array lists and use them as you will
You can do like this..
for (int i = 1; i < n; i++)
{ List<String> mylist$i = new ArrayList<String>();}
it will give you
List<String> mylist1 = new ArrayList<String>();
List<String> mylist2 = new ArrayList<String>();
List<String> mylist3 = new ArrayList<String>();
List<String> mylist4 = new ArrayList<String>();
"$" can be used to join and create a new string/variable.
ArrayListinsideArrayList?