Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
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 = []
Updated on: 30-Jul-2019
49 Views
Advertisements