RandomAccessFile 文本随机读写-白红宇

RandomAccessFile 文本随机读写

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发布时间：2019-03-06

本文共 307 字，大约阅读时间需要 1 分钟。

java.io.RandomAccessFile是一个用于随机读写文件的类，适用于需要随机访问文件内容的场景。以下是该类的一些常用方法：

length()

该方法返回文件的大小，以字节为单位。可以用来获取文件的总长度。

skipBytes(int n)

该方法用于跳过文件中的n个字节，适用于需要快速定位文件特定位置的场景。

seek(long pos)

该方法用于将文件游标移动到文件开头的pos位置。可以用来调整读写的位置。

getFilePointer()

该方法返回当前文件游标的位置，方便用户获取当前读写的位置。

readLine()

该方法从当前位置读取一行文本并返回字符串。可以用来逐行读取文件内容。

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