Update from "eclipse IDE for C/C++" to "eclipse WTP"

* how you can update from "eclipse IDE for C/C++" to "eclipse WTP"

If you are not install eclipse all-in-one version ,
you can update WTP or all-in-one version by using below step.

For example, now i want to update from "eclipse IDE for C/C++" to "eclipse WTP",
then firstly, you should install emf plugin first. Otherwise you will be
error message "WTP Common Core(2.0.1....) requires plug-in "org.eclipse.emf.ecore(2.2.0)", or compatible".

So please go to "Help > software updates > Find and install
>search for new features to install > click "New Remote Site..." button

>> easy way : Unzip eclipse All-in-one version
And create local update site and
line to all-in-one version eclipse folder

NAME :EMF
URL :http://update.eclipse.org/tools/emf/updates

===========If you want to update all at on time=====
== NAME :Update Version
== URL : http://update.eclipse.org/updates/3.3/site.xml
== Then select Eclipse SDK 3.3
====================================================


Click Finish Button

Now you update EMF plugin for updating eclipse WTF

Again
So please go to "Help > software updates > Find and install
>search for new features to install > click "New Remote Site..." button

NAME :WTP
URL :http://download.eclipse.org/webtools/updates

Click Finish button

Then you can work for web project with eclipse.