How do I make sure that my version of Java is current?

Problem:

My computer is having issues with Java. Where can I get an update to my computer's version of Java

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Solution:

Sun's Java for Microsoft Windows

To verify that your computer's current Java installation is up to date, please visit the Sun Microsystems Java.com web site.

If needed, download the latest version of Sun's Java for Windows:

Sun's Java for Macintosh

For best performance, we recommend using Mac OS 10.4.x or later, running Safari 2.x (and above), and Java 1.5.0_07 (and above).

Download the latest version of Apple's Safari for Mac OS X

Sun's Java for Linux

Below please find links to Sun's latest version of Java for Linux:

Java(TM) SE Runtime Environment 6
Installation Instructions