/*
Remove element from LinkedList Java example
This java example shows how to remove a particular element from Java LinkedList.
It also shows how to remove an element at specified index from LinkedList.
*/
import java.util.LinkedList;
public class RemoveElementLinkedListExample {
public static void main(String[] args) {
//create LinkedList object
LinkedList lList = new LinkedList();
//add elements to LinkedList
lList.add("1");
lList.add("2");
lList.add("3");
lList.add("4");
lList.add("5");
System.out.println("LinkedList contains : " + lList);
/*
* To remove a specified element from Java LinkedList, use
* boolean remove(Object obj) method.
*
* This method removes the first occurrence of the specified element from
* Java LinkedList and returns true if LinkedList contained the specified
* element.
*
* If LinkedList did not contain the specified element, it remains unchanged.
*/
boolean isRemoved = lList.remove("2");
System.out.println("Is 2 removed from LinkedList ? :" + isRemoved);
System.out.println("LinkedList now contains : " + lList);
/*
* To remove an element at specified index of LinkedList, use
* Object remove(int index) method.
*
* This method removes an element from specified index and shifts subsequent
* elements to the left. It returns an element previously at the specified
* index.
*/
Object obj = lList.remove(2);
System.out.println(obj + " has been removed from LinkedList");
System.out.println("LinkedList now contains : " + lList);
}
}
/*
Output would be
LinkedList contains : [1, 2, 3, 4, 5]
Is 2 removed from LinkedList ? :true
LinkedList now contains : [1, 3, 4, 5]
4 has been removed from LinkedList
LinkedList now contains : [1, 3, 5]
*/
