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

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.

“The Java 7u21 release introduces changes to security messages related to running Java applets and applications,” Oracle said in a technical document that explains the changes.

Rob Griffiths explains how to disable Java in many popular OS X browsers, to protect yourself from the recently-revealed Java applet security hole.

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.

Problems running Java applets -- fix Users continue to report issues with running specific Java applets after updating to Safari 3.1. MacFixIt reader Hal Staniloff writes: "Can't load any Java ...

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. A Java update for Mac OS X 10.6 ...

JVMs run in both clients and servers, and the Web browser can activate the JVM when it encounters a Java applet.