java name of folder in which java is installed

Hi is there a chance to find where is java installed on windows ?? Becouse my开发者_Go百科 application use JCE but not all algoritms are installed and I have to download some files like its writen here.

Edit: Another question, how to check if JCE is istall and contains such algotitm (DES) ??

It is typically installed under c:\Program Files\Java\{JRE Release)

Otherwise you can find the JDK home if it is installed by the JAVA_HOME environment variable.

Somewhere around C:\Program Files\Java\jre6.

Depending on your system privileges, you may be able to look at your environment variables. From what I understand, the bin folder of your JRE installation should be included in your PATH variable.

You can print this out by typing path into a command line ,

or you can find it by right clicking on my computer, and going to properties. Under the Advanced tab, you should see an environment variables button, and your PATH will be in the bottom list.