With this example we are going to demonstrate how to remove an element at a specific index from a LinkedList. In short, to remove an element at a specific index from a LinkedList you should:
- Create a new LinkedList.
- Populate the list with elements, with the
add(E e)API method of the LinkedLink. - Invoke the
remove(int index)API method of the LinkedList. It removes and returns the element from the specified index, shifting subsequent elements to the left.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
import java.util.LinkedList;
public class RemoveElementIndexLinkedList {
public static void main(String[] args) {
// Create a LinkedList and populate it with elements
LinkedList linkedList = new LinkedList();
linkedList.add("element_1");
linkedList.add("element_2");
linkedList.add("element_3");
linkedList.add("element_4");
linkedList.add("element_5");
System.out.println("LinkedList contains : " + linkedList);
/*
* Object remove(int index) method removes and returns the element from
* the specified index shifting subsequent elements to the left
*/
Object removedElement = linkedList.remove(3);
System.out.println(removedElement + " has been removed from LinkedList");
System.out.println("LinkedList contains : " + linkedList);
}
}
Output:
LinkedList contains : [element_1, element_2, element_3, element_4, element_5]
element_4 has been removed from LinkedList
LinkedList contains : [element_1, element_2, element_3, element_5]
This was an example of how to remove an element at a specific index from a LinkedList in Java.
