The Java.util.LinkedList.removeFirst() method is used to remove the first element from a linked list. This function also returns the first element after removing it.
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.
Below program illustrate the Java.util.LinkedList.removeFirst() method:
// Java code to illustrate removeFirst() methodimport java.io.*;import java.util.LinkedList; public class LinkedListDemo { public static void main(String args[]) { // Creating an empty LinkedList LinkedList<String> list = new LinkedList<String>(); // Using add() method to add elements in the list list.add("Geeks"); list.add("for"); list.add("Geeks"); list.add("10"); list.add("20"); // Displaying the list System.out.println("LinkedList:" + list); // Remove the head using removeFirst() method System.out.println("The first element is: " + list.removeFirst()); // Displaying the final list System.out.println("Final LinkedList:" + list); }} |
LinkedList:[Geeks, for, Geeks, 10, 20] The first element is: Geeks Final LinkedList:[for, Geeks, 10, 20]
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