The Java.util.LinkedList.removeFirst() method is used to remove the first element from the LinkedList.
The Java.util.LinkedList.removeLast() method is used to remove the last element from the LinkedList. Both the methods also returns the element after removing it.
1. removeFirst()
Syntax:
LinkedList.removeFirst()
Parameters: This function does not take any parameters.
Return Value: The method returns the first element or the element present at the head of the list.
2. removeLast()
Syntax:
LinkedList.removeLast()
Parameters: This function does not take any parameters.
Return Value: The method returns the last element or the element present at the tail of the list.
Example:
Java
// Java program to illustrate the Java.util.LinkedList.remove() method// and Java.util.LinkedList.removeLast() methodimport java.util.LinkedList;class GFG { public static void main (String[] args) { // Creating an LinkedList LinkedList<String> list = new LinkedList<String>(); // Use add() method to add elements in the list list.add("Geek"); list.add("for"); list.add("Geeks"); list.add("2020"); list.add("2021"); // Displaying the list System.out.println("LinkedList:\t" + list); // Remove the tail using removeLast() System.out.println("The last element is removed:\t" + list.removeLast()); // Displaying the final list System.out.println("Final LinkedList:\t" + list); // Remove the head using remove() System.out.println("The first element is removed:\t" + list.removeFirst()); // Displaying the final list System.out.println("Final LinkedList:\t" + list); }} |
Output
LinkedList: [Geek, for, Geeks, 2020, 2021] The last element is removed: 2021 Final LinkedList: [Geek, for, Geeks, 2020] The first element is removed: Geek Final LinkedList: [for, Geeks, 2020]
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