Clear a List
void clear()- Removes all of the elements from this list (optional operation).
import java.util.ArrayList;
import java.util.List;
public class Main {
public static void main(String[] args) {
List list = new ArrayList();
list.add("1");
list.add("2");
list.add("3");
list.add("java2s.com");
System.out.println("List has:" + list);
list.clear();
System.out.println("List has:" + list);
}
}
The output:
List has:[1, 2, 3, java2s.com]
List has:[]