Copy (triple-click to select the entire line) and Paste the following in Terminal
Type your password at the prompt. It will not be echoed.
If you do not have Java installed you will get the following output
Unable to find any JVMs matching version "(null)".
No Java runtime present, try --request to install.
Or... just download whatever appears in Software Update. A recent Java malware remover was added on April 12. It will appear in SU whether you installed Java or not.