Apple's latest Java update requires you periodically enable the Java plug-in manually. Here is how this works in OS X.

Although Java initially was hailed in the mid-1990s as a way to run client-side applets, the platform instead became known for its server-side capabilities.

If you do need it, unplug it from the browser unless and until you need it. Java 7 lets users disable Java content in web browsers through the Java control panel applet.

Specifically, the hacked page will simply abuse built-in Java functionality to ask the visitor to run a malicious Java applet.

A Java update for Mac OS X 10.6 and 10.7 sets Java applets to not run automatically on all browsers, expanding a feature that was first introduced to Safari in April.

As i am a beginner in java & i need this applet badly for a Power Grid presentation in my college I will really appreciate if anybody could help me out with this.

Java’s rapid rise to fame 20 years ago began with a tumbling duke applet running in the HotJava browser, long before Microsoft Internet Explorer, Mozilla Firefox, or Google Chrome were released.