New I-Mac Issue re: Java Runtime Environment

Each time I wake my I-Mac with Yosemite ver.10.10.3 and go online, I almost instantly get an error message saying "To view this web content, you need to install the Java Runtime Environment." What can/should I do to stop this, as I never saw this with my old I-Mac?

You have a choice. Install Java or not. Some do not want Java to run on their mac. If you want to use Java here is a link to download it:

https://www.java.com/en/download/mac_download.jsp

Lisa

Are you getting this message routinely (all sites) or only certain sites?