compression - Make tar file by Java

Question

I want to use Java to compress a folder to a tar file (in programmatic way). I think there must be an open source or library to do it. However, I cannot find such method.

Alternatively, could I make a zip file and rename its extended name as .tar?

Anyone could suggest a library to do it? Thanks!

Answer 1

I would look at Apache Commons Compress.

There is an example part way down this examples page, which shows off a tar example.

TarArchiveEntry entry = new TarArchiveEntry(name);
entry.setSize(size);
tarOutput.putArchiveEntry(entry);
tarOutput.write(contentOfEntry);
tarOutput.closeArchiveEntry();