W3School TIY Editor

import java.util.LinkedList; public class Main { public static void main(String[] args) { LinkedList<String> cars = new LinkedList<String>(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford"); // 使用 addFirst() 将元素添加到开头 cars.addFirst("Tesla"); System.out.println(cars); } }