PHPs ip2long and long2ip ported to Java

     In my previous post "Using Java to scan a local network for available IPs (From an old blog, the post refrenced was not ported)" I said I would post the ports of PHPs ip2long and long2ip functions at a later date.  I had intended to wait longer, but it's been kind of slow for me on the blog front the last couple weeks.  So here they are.