JAVA

convert array to array list java

String[] arr = { 1, 2, 3, 4 }
ArrayList<Integer> list = new ArrayList<Integer>();
Collections.addAll(list, arr);
// 'list' now contains [1, 2, 3, 4]

java array to arraylist

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

how to convert arraylist to array in java

List<String> list=new ArrayList<String>();
list.add("sravan");
list.add("vasu");
list.add("raki");

// Conversion part
String names[]=list.toArray(new String[list.size()])

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();

arraylist to array java

ArrayList<String> ArrayLister=new ArrayList<>(){ArrayLister.add("Hi")};
String[] array=ArrayLister.toArray(String[]);

convert arraylist to array in java

Integer[] arr = new Integer[al.size()]; 
for (int i = 0; i < al.size(); i++) 
     arr[i] = al.get(i); 

java arrayList of array to array of array

String[][] w = allProducts.toArray(new String[][] {});

array to arraylist convert

  public class Main {
            public static void main(String[] args) {
                String[] array = {"Dog", "Cat", "Horse", "Turtle"};
                ArrayList<String> array1 = new ArrayList<>();
                for (int i = 0; i < array.length; i++) {
                    array1.add(array[i]);
                }
                System.out.println(array1);
            }

how to convert a arraylist to array in java

Integer[] arr = new Integer[al.size()];
        arr = al.toArray(arr);

array to arraylist java

ArrayList<Integer> list = new ArrayList<>(OtherList);
//it will copy all elements from OtherList to this one
//time complexity - O(n)

convert array to arrayList

String[] geeks = {"Rahul", "Utkarsh", "Shubham", "Neelam"};
 
        // Conversion of array to ArrayList using Arrays.asList
        List al = Arrays.asList(geeks);