Why Java is so slow?

From: <- Chameleon -> (cham_gss_at_hotmail.NOSPAM.com)
Date: 07/30/04 

Date: Fri, 30 Jul 2004 19:28:59 +0300

I have about 2600 lines of this type inside a text file:
----------------------
20/11/1980/My birth!
31/12/2003/A day before this year.
30/07/2004/A Boring Day!
etc
----------------------

These lines describe historical anniversaries.
I have a web page (PHP) with this theme, and I want to create a Java
application for this (stand-alone).

The problem is this:
PHP wants 0,3 seconds to create an HTML with ALL these lines (all of
2600!!!)
BUT in the same machine Java wants 2 minutes!!!!

So, Why Java is so SLOOOOOW?

I see that: Java adds to output String, first 240 lines in about 3 seconds.
I believe there is a problem with reallocation of String.

Because the String (in worst case) is about 800 KBs long, Can I set an
initial size for String?

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