Fast way to compare inputstreams

Question

I have a problem, I need to compare two inputstreams fast.

Today I have a function like this:

private boolean isEqual(InputStream i1, InputStream i2) thr         


        

Answer 1

By far my favorite is to use the org.apache.commons.io.IOUtils helper class from the Apache Commons IO library:

IOUtils.contentEquals( is1, is2 );