在Stream上收集操作是否关闭流和底层资源？ [英] Does collect operation on Stream close the stream and underlying resources?

问题描述

下面的代码需要用try-with-resources打包，以确保底层文件是关闭的吗？

Does below code need to be wrapped in try-with-resources to make sure underlying file is closed?

List<String> rows = Files.lines(inputFilePath).collect(Collectors.toList());

推荐答案

返回的流封装了一个 Reader 。如果需要及时处理文件
的系统资源，那么 try-with-resources 构造应该使用
来确保流的close方法被调用在
流操作完成之后。

The returned stream encapsulates a Reader. If timely disposal of file system resources is required, the try-with-resources construct should be used to ensure that the stream's close method is invoked after the stream operations are completed.

所以是的，包装 Stream try-with-resources 语句中由行返回的$ c> （或关闭）。

So yes, wrap the Stream returned by lines in a try-with-resources statement. (Or close it appropriately.)

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