Screwed up system variables

[paisa90]

Hello all. I was having the "cant find main class" error so I read around that it could be the system variables. I changed them several times and reinstalled Java SDK many times to try to solve this but nothing happened, so I went on and erased all the system variables related to Java because I thought they'd be restored when I reinstalled the SDK.

Well they didnt and now I cant even use a website with Java because I get some "Java not detected" message.

I dont remember which system variables I erased, can you give me a hand? Thank you a lot :(

[paisa90]

EDIT:

I remember I deleted the CLASSPATH, JAVAHOME and JAVA system variables. I can create them again but I dont know what to put under "location". Help me out please :(

[Webuser]

EDIT:

I remember I deleted the CLASSPATH, JAVAHOME and JAVA system variables. I can create them again but I dont know what to put under "location". Help me out please :(

Uninstall JRE and reinstall it to refresh your OS settings ;)

[paisa90]

I did it several times and it didnt help :S

What should I put in each of those variables? I remember their destiny folders where .../java/bin in C:/ or something like that but I need the specifics.

[Webuser]

Watch the source

instructions

[Tolls]

And, I don't know where you got the info that "can't find main class" is down to system variables, but they were very wrong.

[Webuser]

Hello all. I was having the "cant find main class" error so I read around that it could be the system variables.

Emm... can't find main class means you don't have main method in your start class )
Maybe the problem is you using an IDE? Is it Eclipse or what?

[dage_001]

Hello. I too am curious since I only had to modify the "Path" entry maybe once when I had to install a plug-in for my IDE. I am also new, but are you trying to change the "class path variables" in your IDE or the "Environment Variables" in your computer?

Have you also searched the "Similar threads" section below? They are older threads but they might point you in the direction you need.