有没有大佬能简单讲下 Java 中 stream 集合处理的原理 - V2EX
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rqxiao
V2EX    Java

有没有大佬能简单讲下 Java 中 stream 集合处理的原理

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  •   rqxiao Jul 9, 2020 2267 views
    This topic created in 2127 days ago, the information mentioned may be changed or developed.

    现在写集合操作,用 stream 很方便,写一个 FP 调 api 就行

    但实际上 stream 帮我们做了什么呢

    3 replies    2020-07-09 16:15:34 +08:00
    taogen
        1
    taogen  
       Jul 9, 2020 via Android
    1. 中间状态。实际上相当于多个 for 循环,主要功能为过滤、转换、排序等。
    2. 结束状态。相当于最后一个 for 循环。判断是否满足条件,收集得到一个集合,得到一个计算结果,执行一个操作 consumer 等。
    guoyuchuan
        3
    guoyuchuan  
       Jul 9, 2020
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