WEB AS 6.40 ABAP+JAVA

Hi,

I need to install the SAP WEB AS 640 SR1 ( abap+j2ee).

But i am wondering what to install first ?

First the WAS ABAP using SAP Web Application Server ABAP 6.40 SR 1 on AIX : Oracle

and then

the J2EE using SAP Web Application Server Java 6.40 SR1 on AIX: oracle

It seems logical but just to know this for sure.

thnaks