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Title: toBeBetterJavaer/docs/java8/optional.md at master · ShengCSD/toBeBetterJavaer · GitHub

Open Graph Title: toBeBetterJavaer/docs/java8/optional.md at master · ShengCSD/toBeBetterJavaer

X Title: toBeBetterJavaer/docs/java8/optional.md at master · ShengCSD/toBeBetterJavaer

Description: 一份通俗易懂、风趣幽默的Java学习指南，内容涵盖Java基础、Java并发编程、Java虚拟机、Java企业级开发、Java面试等核心知识点。学Java，就认准Java 程序员进阶之路😄 - toBeBetterJavaer/docs/java8/optional.md at master · ShengCSD/toBeBetterJavaer

Open Graph Description: 一份通俗易懂、风趣幽默的Java学习指南，内容涵盖Java基础、Java并发编程、Java虚拟机、Java企业级开发、Java面试等核心知识点。学Java，就认准Java 程序员进阶之路😄 - ShengCSD/toBeBetterJavaer

X Description: 一份通俗易懂、风趣幽默的Java学习指南，内容涵盖Java基础、Java并发编程、Java虚拟机、Java企业级开发、Java面试等核心知识点。学Java，就认准Java 程序员进阶之路😄 - ShengCSD/toBeBetterJavaer

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https://camo.githubusercontent.com/8ef82a68dbcc4857572e0370d1a432a85f92e710f726e6dec33322df5f8bf348/68747470733a2f2f63646e2e746f62656265747465726a61766165722e636f6d2f746f62656265747465726a61766165722f696d616765732f6a617661382f6f7074696f6e616c2d312e6a7067
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#01没有-optional-会有什么问题
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#02optional-是如何解决这个问题的
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#03创建-optional-对象
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#04判断值是否存在
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#05非空表达式
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#06设置获取默认值
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#07获取值
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#08过滤值
https://github.com/ShengCSD/toBeBetterJavaer/blob/master/docs/java8/optional.md#09转换值
https://camo.githubusercontent.com/6421a5280629eb5b016cd62a01ca996db0bf475d231fca3fe8a3054740422209/68747470733a2f2f63646e2e746f62656265747465726a61766165722e636f6d2f746f62656265747465726a61766165722f696d616765732f6a617661382f6f7074696f6e616c2d322e6a7067
可以说是2022年全网最全的学习和找工作的PDF资源了https://tobebetterjavaer.com/pdf/programmer-111.html
https://camo.githubusercontent.com/8a4f3d8b2a89397dd1b3d78e97b4c21c883070612cb6d92834d2cae57c8be5de/68747470733a2f2f63646e2e746f62656265747465726a61766165722e636f6d2f746f62656265747465726a61766165722f696d616765732f676f6e677a686f6e6768616f2e706e67
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