OS X 10.7.5 how do I install Java update?

Welcome to Apple Support Communities, jo annefromnew york!
It appears you need to update or install Java on your Mac running OS X 10.7.5. I'll be more than glad to help!
Get Java for your Mac -- Here's the information you'll need.

Have a great day!

Java for what? there are two different Java's for two different types of applications.

Oracle Java for mac is for web based java applications

http://www.oracle.com/technetwork/java/mac-138071.html

Apple Java is for OS X applications that are not web based

Download Java for OS X 2015-001