Removing a Single Element : ArrayList « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. ArrayList

Use the remove() method to remove a single element:

1. public boolean remove(Object element)
2. Removes a single element by checking for equality,
3. Returns true if the object was found and removed from the list,
4. Otherwise, false is returned.

If the list contains duplicates, the first element in the list that matches the element will be removed.

If removal is not supported, you'll get an UnsupportedOperationException.

If the index passed in is outside the valid range of elements, an IndexOutOfBoundsException is thrown.

import java.util.ArrayList;
import java.util.List;

public class MainClass {
  public static void main(String args[]) throws Exception {

    List list = new ArrayList();
    list.add("A");
    list.add("B");
    list.add("C");

    System.out.println(list.remove(0));
    System.out.println(list.remove("B"));
    System.out.println(list);

  }
}

A
true
[C]