array to arraylist in java code example

Example 1: Create ArrayList from array java

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

Example 2: 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 3: java array to arraylist

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

Example 4: Create ArrayList from array java

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

Example 5: convert arraylist to array in java

Integer[] arr = new Integer[al.size()]; 
  
        // ArrayList to Array Conversion 
        for (int i = 0; i < al.size(); i++) 
            arr[i] = al.get(i);

Example 6: array in java

//Metodo 1
type nome = new type[n];

//Metodo 2
type nome[];
nome = new type[n];