convert array to arraylist 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");
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: how to cast arraylist to array in java
import java.util.ArrayList;
public class ListToArray {
public static void main(String args[]){
ArrayList<String> list = new ArrayList<String>();
list.add("Apple");
list.add("Orange");
list.add("Banana");
System.out.println("Contents of list ::"+list);
String[] myArray = new String[list.size()];
list.toArray(myArray);
for(int i=0; i<myArray.length; i++){
System.out.println("Element at the index "+i+" is ::"+myArray[i]);
}
}
}
Example 6: 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);