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Java Forum / General / December 2007Do I have too much Java on my computer?
When I look at the Software programs in my XP Control Panel, I see about 10 Java programs of varying MB's, but all of them 133MB or more. It seems to me that I do not really need all of those and that all can be deleted except the latest: Jave 6, update 3. Could those others be deleted? > When I look at the Software programs in my XP Control Panel, I see > about 10 Java programs of varying MB's, but all of them 133MB or more. > It seems to me that I do not really need all of those and that all can > be deleted except the latest: Jave 6, update 3. Could those others be > deleted? The only potential problem with deleting them is that you have loaded on your computer several different versions of java's runtime environment (jre). When you try to run a program or applet that was written for a previous jre, it will not run. But if you don't have any old stuff that uses it, you can delete it without any significant problems. If you come across an applet that uses an older jre, and you don't have it installed, it will just prompt you to install it. >> When I look at the Software programs in my XP Control Panel, I see >> about 10 Java programs of varying MB's, but all of them 133MB or more. [quoted text clipped - 11 lines] > If you come across an applet that uses an older jre, and you don't > have it installed, it will just prompt you to install it. I think you mean newer? I have some applications that were compiled with Java 1.1 and they still run fine with Java 6, update 3.  SignatureBeware of bugs in the above code; I have only proved it correct, not tried it. -- Donald E. Knuth >>> When I look at the Software programs in my XP Control Panel, I see >>> about 10 Java programs of varying MB's, but all of them 133MB or more. [quoted text clipped - 14 lines] > I think you mean newer? I have some applications that were compiled with > Java 1.1 and they still run fine with Java 6, update 3. Usually, programs written for earlier versions of Java will run with later versions. However, sometimes there are problems, and some programs are configured to look for the JRE in a particular location. This is particularly true of Windows services written in Java. The service wrappers often specify the Java DLL or a path to a particular JRE. You can fix many of these configuration issues (often requiring manual intervention), but not all. That is why Java updates do not delete or replace earlier versions. > douggun...@gmail.com wrote: > >> When I look at the Software programs in my XP Control Panel, I see [quoted text clipped - 19 lines] > Beware of bugs in the above code; I have only proved it correct, not > tried it. -- Donald E. Knuth I believe all browsers have built in support for 1.1. > The only potential problem with deleting them is that you have loaded > on your computer several different versions of java's runtime > environment (jre). When you try to run a program or applet that was > written for a previous jre, it will not run. It should, actually, as newer Java versions can run code written for older versions. SignatureLew On Wed, 19 Dec 2007 09:22:14 -0800 (PST), batlowese <batlowese@hotmail.com> wrote, quoted or indirectly quoted someone who said : >When I look at the Software programs in my XP Control Panel, I see >about 10 Java programs of varying MB's, but all of them 133MB or more. >It seems to me that I do not really need all of those and that all can >be deleted except the latest: Jave 6, update 3. Could those others be >deleted? You only need one JDK. After you remove them, try reinstalling JDK 1.6.0_03. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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