collectors.groupingby详解

引用中提到了Collectors.groupingBy的详解，该方法是Stream API中用于对元素进行分组统计的函数。它可以根据指定的条件对元素进行分组，并返回一个Map，其中key是分组的条件，value是根据该条件得到的结果。通过groupingBy方法，我们可以实现多级分组、按照自定义Key分组、求最大值、最小值、平均值等操作。具体的用法可以参考中的示例代码和说明。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [Java8 Stream（12）Collectors.groupingBy 分组统计详解](https://blog.csdn.net/winterking3/article/details/131671534)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *3* [java8新特性.txt](https://download.csdn.net/download/woailengse/11829125)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]