Mar 31, 2023 · The remove(int index) method present in java.util.ArrayList class removes the element at the specified position in this list and shifts any subsequent elements to the left (i.e. subtracts one from their indices).

The remove() method removes an item from the list, either by position or by value. If a position is specified then this method returns the removed item. If a value is specified then it returns true if the value was found and false otherwise.

Jan 4, 2025 · There are 3 ways to remove an element from ArrayList as listed which later on will be revealed as follows: Using remove() method by indexes(default) Using remove() method by values; Using remove() method over iterators; Note: It is not recommended to use ArrayList.remove() when iterating over elements. Method 1: Using remove() method by indexes

First you can remove the object by index (so if you know, that the object is the second list element): a.remove(1); // indexes are zero-based Or, you can remove the first occurence of your string: a.remove("acbd"); // removes the first String object that is equal to the // …

Dec 15, 2011 · In general an object can be removed in two ways from an ArrayList (or generally any List), by index (remove(int)) and by object (remove(Object)). In this particular scenario: Add an equals(Object) method to your ArrayTest class. That will allow ArrayList.remove(Object) to identify the correct object.

Feb 15, 2014 · There are two versions of remove() method: ArrayList#remove(int) that takes an index to remove. With an ArrayList<Integer>, removing an integer value like 2, is taken as index, as remove(int) is an exact match for this. It won't box 2 to Integer, and widen it.

Apr 4, 2025 · ArrayList has two available methods to remove an element, passing the index of the element to be removed, or passing the element itself to be removed, if present. We’re going to see both usages. 2.1. Remove by Index.

The ArrayList.remove() method in Java provides two overloaded versions to remove elements: one by index and one by value. By understanding how to use these methods, you can efficiently manage the contents of your ArrayList in Java applications.

Aug 7, 2023 · This tutorial discussed the different ways to remove single or multiple elements from an ArrayList using the remove(), removeAll() and removeIf() methods. The remove() method removes a single element either by the specified value or from the specified index.

Sep 11, 2022 · Method remove(int index) is used for removing an element of the specified index from a list. It removes an element and returns the same. It throws IndexOutOfBoundsException if the specified index is less than zero or greater than the size of the list (index size of ArrayList). public Object remove(int index) Example package beginnersbook.com ...