It depends how you run your Java application. However, if you run a Java applications from a command shell via the "java" command, you run one instance of JVM each time you run a Java application.
Note: one of the guidelines of this discussion forum is "use real words". Please do not use abbreviated texting language. Doing so makes it harder for people with limited English to read your texts. It also annoys some people, which will reduce the number of responses to your posts.
Betty Rubble? Well, I would go with Betty... but I'd be thinking of Wilma.