If, after installing Java for OS X 2014-001 and the latest version of Java 7 from Oracle, you want to disable Java 7 and re-enable the Apple-provided Java SE 6 web plug-in and Web Start functionality, follow these steps. Note: You must be logged in as an administrator. If prompted for your administrator password after a command, enter it and then press the Return or Enter key. 
. Open Terminal, located in the Utilities folder.
The following steps will undo the above commands and restore Java 7 in OS X Lion and later. 
. Disable Java SE 6 Web Start opening:
 
. Enter this command, then press the Return or Enter key: 
 
sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/javaws /usr/bin/javaws

. When prompted, enter your administrator password, then press the Return or Enter key.

 
 
. Re-enable the Java 7 applet plug-in by downloading and reinstalling the. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet.
Java Applet Download
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How to in Opera. NOTE. The information in this article Enable and Disable Java For Windows and Mac, Opera uses the Java plug-in to run Java applets. If Java applets do not load in Opera, you may not have Java installed on your computer, or plug-ins may not be enabled (or both). Please see the information below to install Java and enable and disable plug-ins:. Check to be certain that you have installed on your computer. Check that on your computer.
Check that Opera has plug-ins enabled. To do so, click the Opera menu - Settings - Preferences.
In the Preferences window, click the Advanced tab, and make sure ' Enable plug-ins' is checked. To disable plug-ins such as Java, uncheck the ' Enable plug-ins' check box. <a target='blank' href='border='0' alt=' src='/></a> Download Opera To download Opera, please. NOTE. The information in this article.