Check out these sites to verify your current Java version: www.java.com: Use this site to check the current version of Java and determine what updates you will need to do Java programming efficiently.

To clear the Java cache, open the Java control panel, which you can find in the Windows Control Panel or in System Preferences on a Mac.

Java is still being used. We tell you how to install Java and make sure that you have enabled the latest Java version on your Windows computer.

Java Tester: This site contains all the resources you will need to verify your currently installed Java version. Java Tester also gives you tips to detect Java versions on Mac computers as well.

This post explains how to install Java or check which version is running on your machine. Install on any OS, and learn about the JDK.