MappedByteBuffer maps a region of a file directly in memory.

MappedByteBuffer将文件所在区域直接映射到内存。

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I'll discuss an eighth type, MappedByteBuffer, available for memory-mapped files, later in this article.

在本文后面，我将讨论第8种类型MappedByteBuffer，它用于内存映射文件。

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