How can the first element of a linked list of type LinkedList be extracted?

In Java, to retrieve the first element from a linked list of type LinkedList, you can use the getFirst() or peek() method.

Example:

import java.util.LinkedList;

public class Example {
    public static void main(String[] args) {
        LinkedList<String> list = new LinkedList<>();
        list.add("First");
        list.add("Second");

        // Getting the first element
        String firstElement = list.getFirst();
        System.out.println("First element: " + firstElement);

        // Alternative method
        String firstPeek = list.peek();
        System.out.println("First element (peek): " + firstPeek);
    }
}

The getFirst() method will throw a NoSuchElementException if the list is empty, while peek() will return null in that case.