Java LinkedListtoArray() Method
Example
Get an array from anLinkedList:
import java.util.LinkedList;public class Main { public static void main(String[] args) { LinkedList cars = new LinkedList(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford"); cars.add("Mazda"); Object[] carsArray = cars.toArray(); for(Object item : carsArray) { System.out.println(item); } }} Definition and Usage
ThetoArray() method returns an array containing all of the items in the list.
If no argument is passed then the type of the returned array will beObject. If an array is passed as an argument then this method will return an array with the same data type.
If the array in the argument is large enough to contain all of the list items then this method will return the argument itself after writing the list items into it.
Syntax
One of the following:
public Object[] toArray()public T[] toArray(T[]array)T refers to the data type of items in the list.
Parameter Values
| Parameter | Description |
|---|---|
| array | Optional. An array which specifies the data type of the returned array and will be returned by the method if it has enough space for the items in the list. If the array is not large enough then the method returns a new array of the same data type. |
Technical Details
| Returns: | An array containing all of the elements of theLinkedList in order. |
|---|---|
| Throws: | ArrayStoreException - If the type of the array is not compatible with the type of theLinkedList.NullPointerException - If the argument isnull. |
More Examples
Example
Specify the return type oftoArray():
import java.util.LinkedList;public class Main { public static void main(String[] args) { LinkedList<String> cars = new LinkedList<String>(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford"); cars.add("Mazda"); String[] carsArray = new String[4]; carsArray = cars.toArray(carsArray); for(String item : carsArray) { System.out.println(item); } }}Related Pages
❮ LinkedList Methods
