Seeking a ByteArrayInputStream using java.io

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误落风尘
误落风尘 2021-01-04 10:43

How can I seek (change the position) of a ByteArrayInputStream (java.io)? It is something so obvious, but I can\'t seem to find a method for this a

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  •  误落风尘
    2021-01-04 11:34

    There is a ByteArrayInputStream(byte(), int, int) constructor that will give you an input stream that will read up to a given count of bytes starting from a given offset. You can use this to simulate seeking to an arbitrary offset in the stream.

    You have to deal with the fact that "seeking" gives you a new stream object, and this may be awkward. However, this approach does not involve copying any bytes or saving them to a file, and it should be safe to not bother with closing the ByteArrayInputStream objects.

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