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Only if you will be accessing web sites or apps that require Java. If you are not, there is no harm in just not installing Java at all.
 
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That is interesting. I worked in Air Operations at two airlines and frequency look up pilot advisories, but these are published at the website of an airport 1 mile from my front door.

In plaintext, but of course using pilot terminology.
 
Don't worry about it, a popup will appear if Java is required. I'm a developer and use a lot of apps, I rarely, if ever use Java.
 
How do I know if I am using Apps that require Java?

Name a few.

I typically run Firefox, Safaria, Pages and Aperture.

Some banking websites also require Java. But as mentioned, if you open a website that needs it - you'll get a pop-up telling you so.
 
How do I know if I am using Apps that require Java?

Name a few.

I typically run Firefox, Safaria, Pages and Aperture.

It is very unusual for an app to require Java any more. The only app I use that requires it is Crashplan's backup application. What is more common, but still not particularly widespread, is for a web site to require Java.

None of the apps you listed require Java. Like mentioned, if you need Java for something you will get a popup telling you so.
 
The Adobe Creative Suite seems to use Java Applets. I use inDesign and Illustrator.

And sorry about the typo in Safaria. It just proves that too much time surfing the web turns your world into an opera — Safaria.
 
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