How can I sort an ArrayList of Strings in Java?
I have String
s that are put into an ArrayList
randomly.
private ArrayList<String> teamsName = new ArrayList<String>();
String[] helper;
For example:
teamsName.add(helper[0]) where helper[0] = "dragon";
teamsName.add(helper[1]) where helper[1] = "zebra";
teamsName.add(helper[2]) where helper[2] = "tigers" // and so forth up to about 150 strings.
Given the fact that you cannot control the inputs (i.e. string that is coming into the ArrayList is random; zebra or dragon in any order), once the ArrayListis filled with inputs, how do I sort them alphabetically excluding the first one?
teamsName[0]
is fine; sort teamsName[1 to teamsName.size]
alphabetically.
Solution 1:
Collections.sort(teamsName.subList(1, teamsName.size()));
The code above will reflect the actual sublist of your original list sorted.
Solution 2:
Check Collections#sort
method. This automatically sorts your list according to natural ordering. You can apply this method on each sublist you obtain using List#subList
method.
private List<String> teamsName = new ArrayList<String>();
List<String> subList = teamsName.subList(1, teamsName.size());
Collections.sort(subList);