How To Convert An Array To An ArrayList In Java using the ArrayList addAll method (example two).

how-to-convert-array-to-arraylist-in-java-using-arraylist-addall-method-example-two.java

public class Main {

  public static void main(String[] args) {

    Integer[] numbers = {1, 2, 3, 4, 5};

    java.util.List<Integer> exampleList = java.util.Arrays.asList (numbers);

    System.out.println ("exampleList.class.name: " + exampleList.getClass ().getName ());

    exampleList.forEach (item -> System.out.println ("item: " + item));

    int initialCapacity = exampleList.size ();

    java.util.List<Integer> exampleArrayList = new java.util.ArrayList<> (initialCapacity);

    exampleArrayList.addAll (exampleList);

    System.out.println ("exampleArrayList.class.name: " + exampleArrayList.getClass ().getName ());

    exampleArrayList.forEach (item -> System.out.println ("item: " + item));

    System.exit (0);
  }
}

See the following article: How To Convert An Array To An ArrayList In Java!

Run this in your browser using Try It Online.