推荐回答（2个）
OOP就是面向对象编程 把所有东西都看成对象 比如 人 就是一个对象
对象有属性 和方法
属性 用来表示对象的状态/数据 （现实对象的名词/形容词）
人 的属性 姓名 年龄 性别 种族 身高 体重 等等。。
方法 用来表示对象的行为/提供的服务 （现实对象的动词）
人 的方法 吃 喝 拉 撒 睡 说 走 等等
多态 同样的方法 对不同的对象 有不同的处理
婴儿 是 人 的子类 有 吃 方法 但 人 可以嚼 婴儿 不能嚼
人 有 拿 方法 对锤子 和 鸡蛋 的处理不同 一个用力大 一个用力小
接口 就是一组方法的定义
食物接口 必须有 补充能量 方法
交通工具接口 必须有 移动 方法
通讯工具接口 必须有 接收信息 发送信息 方法
给你推荐本书 Beginning Java Objects 我看这本书之前看的书大多讲的都是java的如何编写代码 对概念讲的不细 这本书专门讲概念 思维方式
面向对象编程（Object Oriented Programming，OOP，面向对象程序设计）是一种计算机编程架构。
OOP 的一条基本原则是计算机程序是由单个能够起到子程序作用的单元或对象组合而成。
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