Do I need JRE 1.6 at all if I already install JDK 1.6 ?

[Tom Parson]

I downloaded the newest jdk 1.6 upd 2.
During the install I am asked wether I want to install

JDK 1.6.02

AND

JRE 1.6.02

I wonder wether it is necessary to install JRE as well.

As far as I know JDK contains already an JRE in jdk\jre

Furthermore

jdk\bin

contains at least all necessary tools e.g. javaw.exe

which jre\bin contains.

So do I need to install JRE as well if I already installed JDK ?

If yes: Which path should have priority in the PATH environment:

jdk\bin

or

jre\bin ?

Tom