At the end Back to reference index Environment variables It is not completed yet. You may need to set environment variables. Especially the machine was already installed other version JDK or other Java development tools, you should check the settings.
PATH specifies the program location.
If you are using Windows 95, you can specify at autoexec.bat. It is OK the directory was somewhere in the PATH setting. If it is OK, let's check the JDK was installed correctly. If you were said the program not found or you saw other version, the PATH setting may have problem.