How to create an ArrayList that I can add items too like this Java

Question

I have the following String list which is constructed as:

String[] messageList = messages.split("(?<=\\G.{" + 9 + "})");

I want to be able to add new strings to the list but of course this would need to be an arraylist.

How could I make an array list from this string list?

Thanks

Answer 1

Use Arrays#asList . Try,

List<String> list= new ArrayList<>(Arrays.asList(messageList));

Answer 2

You can use Arrays.#asList(T...) to construct a new ArrayList containing the elements in the messageList array.

Before Java 7 :

List<String> l = new ArrayList<String>(Arrays.asList(messageList));

After :

List<String> l = new ArrayList<>(Arrays.asList(messageList));

Or directly :

List<String> l = new ArrayList<>(Arrays.asList(messages.split("(?<=\\G.{" + 9 + "})")));

Answer 3

Try this:

List<String> lst = new ArrayList<>(Arrays.asList(messageList));

or:

List<String> lst = new ArrayList<>(Arrays.asList(message.split("(?<=\\G.{" + 9 + "})")));

Also check Arrays.asList

Returns a fixed-size list backed by the specified array. (Changes to the returned list "write through" to the array.) This method acts as bridge between array-based and collection-based APIs, in combination with Collection.toArray(). The returned list is serializable and implements RandomAccess.

Answer 4

List<String> lst = new ArrayList<>(Arrays.asList(messages.split("(?<=\\G.{" + 9 + "})")));