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Java SE 学习笔记：泛型篇（下）

5.2 自定义泛型方法附注：如何在IDEA中找出一个类的所有子类？六、类型变量的上限我们在声明<T>等类型变量时，可以给它限定“上限”。语法格式：<T extends 上限> : 表示T的类型必须是<=上限，即要么是上限本身，要是继承...

Java SE 学习笔记：泛型篇（上）

编译软件：IntelliJ IDEA 2019.2.4 x64运行环境：win10 家庭中文版jdk版本：1.8.0_361提示：以下是本篇文章正文内容，下面案例可供参考一、泛型是什么？首先让我们看看百度百科中关于“泛型”的权威解释，如下所示。Java泛型是J2 SE1.5中引入的一个新特性...

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更新时间 2023-08-10 11:21:08

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