Java .remove()

The .remove() method is used for removing specified elements from instances of the ArrayList class.

Syntax

An element can be removed from an ArrayList instance by being passed to the .remove() method. It can be referenced either by value or index:

arrayListInstance.remove(element);

Example

In the example below, an empty ArrayList instance studentList is created and can hold String-type elements. Next, a few elements are added with the .add() method. Lastly, two students are removed from the ArrayList with .remove():

import java.util.ArrayList;

public class Students {
  public static void main(String[] args) {

    ArrayList<String> studentList = new ArrayList<String>();

    studentList.add("John");
    studentList.add("Lily");
    studentList.add("Samantha");
    studentList.add("Tony");

    // Remove John via index, then Lily via value
    studentList.remove(0);
    studentList.remove("Lily");

    System.out.println(studentList);
  }
}

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The studentList output should look like this:

[Samantha, Tony]

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