Thread: Printing ArrayList

I'm looking for a way to print an Array List. I know I can use a loop but I do not want to use it. I'm looking for others way, I tried with println() and toString() but it does not return me the value of the Array List. See code below

      int[] numbers = { 1, 4, 6, 7, 6, 2 };
        System.out.println(Arrays.toString(numbers)); // print [1, 4, 6, 7, 6, 2] 
 
        List<int[]> numbersList = Arrays.asList(numbers); 
        System.out.println(numbersList); // print [[I@379619aa]
        System.out.println(numbersList.toString()); // print [[I@379619aa]

way to print an Array List.

Are you asking about the ArrayList class? Where is the ArrayList variable in the posted code?
If not, please explain what variable's contents you what to print.

Note: The numbersList List contains arrays of int, not int.

The List numbersList contain int arrays. To print the contents of an array you need to get it from the List first.

Note: numbersList is defined as a List, not as an ArrayList.

So technically, I haven't converted my array to an ArrayList that is what you are saying right? I got this "way" to convert from this: https://www.geeksforgeeks.org/conver...ylist-in-java/ - I'm kinda surprise tho

I haven't converted my array to an ArrayList

Technically the asList method returns a List, not an ArrayList.
What the asList method has done is create a List with one item (an int array)
Print out the size of numbersList to see how many items it contains.

What is the difference

int is a primitive, String is an object