Create ArrayList from array

Question

I have an array that is initialized like:

Element[] array = {new Element(1), new Element(2), new Element(3)};

I would like to convert this

Answer 1

1. If we see the definition of Arrays.asList() method you will get something like this:

    public static  List asList(T... a) //varargs are of T type. 
   

   So, you might initialize arraylist like this:

    List arraylist = Arrays.asList(new Element(1), new Element(2), new Element(3));
   

   Note : each new Element(int args) will be treated as Individual Object and can be passed as a var-args.

2. There might be another answer for this question too.
   If you see declaration for java.util.Collections.addAll() method you will get something like this:

   public static  boolean addAll(Collection c, T... a);
   

   So, this code is also useful to do so

   Collections.addAll(arraylist, array);