Re: Java and ActiveX Integration

From:

Daniel Pitts <newsgroup.spamfilter@virtualinfinity.net>

Newsgroups:

comp.lang.java.programmer

Date:

Tue, 23 Oct 2007 20:57:41 -0700

Message-ID:

<2PadncAY-74mX4PanZ2dnUVZ_sPinZ2d@wavecable.com>

Peter Olcott wrote:

"Arne VajhHj" <arne@vajhoej.dk> wrote in message
news:471e9953$0$90264$14726298@news.sunsite.dk...

Peter Olcott wrote:

How does Java run on WebPages if it is not interpreted?

JSP (Java Server Pages) is triple compiled on the server
(jspc compiles from JSP to Java, javac compiles from Java
to Java byte code, JVM JIT compiles from Java byte code
to native).

Java applets is compiled from Java to Java byte code
by the developer somewhere and compiled from Java byte
code to native by the JIT compiler in the JVM used
by the browser.

Well if you use a JVM from mid 1990's it may actually
interpret, but ...

JavaScript is interpreted, but has nothing to do with
Java.

Arne

How long does this whole process take? Does the user have to
wait a long time for a Java applet to be compiled before it
runs? I need a language that will run will very little
delay, either directly from source-code or very quickly
compiled.

The Applet is compiled to byte code by the developer, so that doesn't
affect the user startup time. The JIT compiler is designed to be
somewhat transparent to the application user while increasing speed for
the user.

--
Daniel Pitts' Tech Blog: <http://virtualinfinity.net/wordpress/>