生成收藏的java代码

好的，以下是一个简单的收藏 Java 代码的示例，可供参考：

import java.util.ArrayList;

public class Favorites {
    private ArrayList<String> items = new ArrayList<String>();

    public void addItem(String item) {
        if (!items.contains(item)) {
            items.add(item);
            System.out.println(item + " has been added to your favorites.");
        } else {
            System.out.println(item + " is already in your favorites.");
        }
    }

    public void removeItem(String item) {
        if (items.contains(item)) {
            items.remove(item);
            System.out.println(item + " has been removed from your favorites.");
        } else {
            System.out.println(item + " is not in your favorites.");
        }
    }

    public void displayItems() {
        if (items.size() > 0) {
            System.out.println("Your favorites:");
            for (String item : items) {
                System.out.println("- " + item);
            }
        } else {
            System.out.println("Your favorites list is empty.");
        }
    }
}

您可以根据自己的需求对该代码进行修改和调整。