java create empty arraylist

To create an empty ArrayList in Java, you can use the following code:

ArrayList<Type> list = new ArrayList<Type>();

This creates a new empty ArrayList called list that can hold elements of type Type. The ArrayList is a class that implements the List interface and provides resizable-array functionality for storing elements.

You can also use the diamond operator <> to create the ArrayList like this:

ArrayList<Type> list = new ArrayList<>();

To add elements to the ArrayList, you can use the add method, like this:

list.add(element1);
list.add(element2);
list.add(element3);

This adds the elements element1, element2, and element3 to the ArrayList.

You can also use the addAll method to add multiple elements to the ArrayList at once, like this:

list.addAll(Arrays.asList(element1, element2, element3));

This adds the elements element1, element2, and element3 to the ArrayList.