Web Reference: Resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, this class provides methods to manipulate the size of the array that is used internally to store the list. The size, isEmpty, get, set, iterator, and listIterator operations run in constant time. The add operation runs in amortized constant time, that is, adding n elements requires O(n) time. All of the other operations run in linear time (roughly speaking). The constant factor is low compared to that for the LinkedList implementation. Apr 13, 2015 · list = new ArrayList(); You can add, remove items in ArrayList Like this. You can initialize or create an instance of your array list like this idArray = new ArrayList (); You can perform any operations to it using idArray object. For example you can add items like this idArray.add ("item1");//In you case its a list of strings.
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