The clear Method of AbstractList Class in Java

Remove all the elements from the list using the clear() method of the AbstractList class. After using the method, the list won’t be having any elements.

The syntax is as follows

public void clear()

To work with the AbstractList class, import the following package

import java.util.AbstractList;

The following is an example to implement clear() method of the AbstractlList class in Java

Example

 Live Demo

import java.util.ArrayList;
import java.util.AbstractList;
public class Demo {
   public static void main(String[] args) {
      AbstractList<Integer>
      myList = new ArrayList<Integer>();
      myList.add(75);
      myList.add(100);
      myList.add(150);
      myList.add(200);
      myList.add(250);
      myList.add(300);
      myList.add(350);
      myList.add(400);
      System.out.println("Elements in the AbstractList = " + myList);
      System.out.println("Count of Elements in the AbstractList = " + myList.size());
      myList.clear();
      System.out.println("\nElements in the updated AbstractList = " + myList);
      System.out.println("Count of Elements in the updatedAbstractList = " + myList.size());
   }
}

Output

Elements in the AbstractList = [75, 100, 150, 200, 250, 300, 350, 400] Count of Elements in the AbstractList = 8
Elements in the updated AbstractList = [] Count of Elements in the updatedAbstractList = 0