Remove element from List
E remove(int index)- Removes the element at the specified position in this list (optional operation).
boolean remove(Object o)- Removes the first occurrence of the specified element from this list, if it is present (optional operation).
boolean removeAll(Collection<?> c)- Removes from this list all of its elements that are contained in the specified collection (optional operation).
boolean retainAll(Collection<?> c)- Retains only the elements in this list that are contained in the specified collection (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);
list.remove("java2s.com");
System.out.println(list);
}
}
The output:
[1, 2, 3, java2s.com]
[1, 2, 3]