java集合框架-ArrayList

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        list.add("apple");
        list.add("banana");
        list.add("cherry");

        System.out.println(list);
        System.out.println("Size: " + list.size());
        System.out.println("Element at index 1: " + list.get(1));

        list.set(1, "orange");
        System.out.println(list);

        list.remove(2);
        System.out.println(list);
    }
}