Just installed JAVA on laptop, how to make it work?

[PhilUK]

I've just installed Java onto my laptop (the file I downloaded was jdk-1_5_0_09-windows-i586-p.exe from the Java website)
I've installed it now but when I try to run the command javac it says it's not a recognised command. Is there anything extra I have to do to fix this problem or am I just missing something obvious?
I hope it can be fixed because I'm trying to do my university coursework!!!

Thanks for any replys,

Phil

[Kinda Electroni]

Hi,
Go to Control Panel
System
Advanced
Environment Variables
Edit the path there.
There are two windows, and you have to add the java path into both of them.
as example:
C:\java\...

[PhilUK]

hi, I tried to do that, and I created two variables, one on each of the windows and I entered C:\Program Files\Java with the variable name JAVA for each of them.
it still gives me the same error message. any ideas?

thanks,
Phil

edit: oh forgot to say that I have several subfolders in the Java folder they are:
jdk1.5.0_09
jre1.5.0_03
jre1.5.0_06
jre1.5.0_09

should I direct it to one of these folders instead?