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The clear() method of CopyOnWriteArrayListin Java
To remove all the elements from the CopyOnWriteArrayList, use the clear() method. It empties the list.
The syntax is as follows:
void clear()
To work with CopyOnWriteArrayList class, you need to import the following package:
import java.util.concurrent.CopyOnWriteArrayList;
The following is an example to implement CopyOnWriteArrayList class clear() method in Java:
Example
import java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList<Integer> arrList = new CopyOnWriteArrayList<Integer>(); arrList.add(220); arrList.add(250); arrList.add(400); arrList.add(500); arrList.add(650); arrList.add(700); arrList.add(800); System.out.println("CopyOnWriteArrayList String Representation = " + arrList.toString()); arrList.clear(); System.out.println("Updated CopyOnWriteArrayList = " + arrList.toString()); } }
Output
CopyOnWriteArrayList String Representation = [220, 250, 400, 500, 650, 700, 800] Updated CopyOnWriteArrayList = []
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