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Editorial Team
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Asked: 2026-06-12T08:13:16+00:00

I’m trying to understand how to randomly traverse a file/files in a .tar.gz using

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I’m trying to understand how to randomly traverse a file/files in a .tar.gz using TrueZIP in a Java 6 environment( using the Files classes). I found instances where it uses Java 7’s Path, however, I can’t come up with an example on how to randomly read an archive on Java 6.

Additionally, does “random” reading mean that it first uncompresses the entire archive, or does it read sections in the compressed file? The purpose is that I want to retrieve some basic information from the file without having to uncompress the entire thing just to read it(ie username).

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  1. Editorial Team

    I am not aware of TrueZip in particular, but at least in terms of Zip, RAR and Tar you can access single files and retrieve details about them and even extract them without touching the rest of the package.

    Additionally, does “random” reading mean that it first uncompresses
    the entire archive

    If TrueZip follows Zip/RAR/Tar format, then it does not uncompress the entire archive.

    The purpose is that I want to retrieve some basic information from the
    file without having to uncompress the entire thing just to read it(ie
    username).

    As previously, that should be fine — I don’t know TrueZip API in particular, but file container formats allow you to inspect file info without reading a single bit of the data, and optionally extract/read the file contents without touching any other file in the container.

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