从ArrayList中的object中搜索特定元素

import java.util.ArrayList;

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

        String target = "banana";
        int index = searchElement(list, target);
        if (index != -1) {
            System.out.println("找到了目标元素 " + target + "，索引位置为 " + index);
        } else {
            System.out.println("未找到目标元素 " + target);
        }
    }

    public static int searchElement(ArrayList<String> list, String target) {
        for (int i = 0; i < list.size(); i++) {
            if (list.get(i).equals(target)) {
                return i;
            }
        }
        return -1;
    }
}