array to arraylist java code example

Example 1: java array to list

Integer[] spam = new Integer[] { 1, 2, 3 };
List<Integer> list = Arrays.asList(spam);

Example 2: Create ArrayList from array java

new ArrayList<>(Arrays.asList(array));

Example 3: java list to array

String[] arr = list.toArray(new String[list.size()]);

Example 4: java arraylist to array

List<String> list = new ArrayList<>();
list.add("a");
list.add("ab");
list.add("abc");
list.add("abcd");
// convert
String[] array = list.toArray();

Example 5: java array to arraylist

List<Element> list = Arrays.asList(array);

Example 6: Create ArrayList from array java

new ArrayList<>(Arrays.asList(array))