这篇文章面向 Java 初学者，把 Collection 接口、ArrayList、LinkedList 的差异和选型讲清楚，同时用 TaoToken 统一 Key 接入 AI 工具辅助生成示例代码，正文会给出可复制的 settings.json 骨架和依赖配置，最后带你编译运行、增删改查验证一遍。你跟着做，半小时内能把集合基础跑通。

文章浏览阅读20次。Java集合框架是日常开发中处理数据最核心的工具，ArrayList、HashMap、HashSet各自承担着有序存储、快速索引与去重判断的职责。理解它们的数据结构原理，是掌握高效编码的关键。集合框架不仅能模拟数据库表完成增删改查，还能通过对象引用建立跨模块的业务关联，例如在影视 ...

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・例外が発生した時の処理方法を書いておくこと ・例外を放置する → プログラムの強制終了 例外はクラスである 下記のコードより、例外がクラスであり継承関係を持つ事がわかります。

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