Example: LinkedListExample in Java

// LinkedListExample
import java.util.LinkedList;
import java.util.List;

// Main class containing the entry point of the program
public class Main {
    public static void main(String[] args) {
        // Step 1: Create a LinkedList to store Integer elements
        List<Integer> numbers = new LinkedList<>();
        System.out.println("Initial number list: " + numbers);

        // Step 2: Add elements to the LinkedList
        numbers.add(10);
        numbers.add(20);
        numbers.addFirst(5); // Add to the beginning (specific to LinkedList)
        numbers.addLast(25);  // Add to the end (specific to LinkedList)
        System.out.println("After adding numbers: " + numbers);

        // Step 3: Access first and last elements
        int firstNum = ((LinkedList<Integer>) numbers).getFirst(); // Cast needed for getFirst()
        int lastNum = ((LinkedList<Integer>) numbers).getLast();   // Cast needed for getLast()
        System.out.println("First number: " + firstNum);
        System.out.println("Last number: " + lastNum);

        // Step 4: Remove elements
        numbers.remove(1); // Removes element at index 1 (value 10)
        numbers.removeFirst(); // Removes 5
        System.out.println("After removing elements: " + numbers);

        // Step 5: Get the size of the LinkedList
        int numberOfNumbers = numbers.size();
        System.out.println("Number of elements: " + numberOfNumbers);
    }
}