how to configure jvm and eclipse in mac os 10.6

Unable to locate the JV开发者_如何学PythonM for project GuestBook. Please verify that you have a project-level JVM installed by inspecting your project's build path.

sounds like you imported a project from a different OS and had a JRE selected that isn't on MacOS.

On the menu, select Project->Properties. On the left select Java Build Path and look at the bottom of the "Libraries" tab. You'll see the JRE library. Select that and click "Edit...". In the next screen, change the JRE to either the workspace default JRE or select one from Alternate JRE.