AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Modify java interpreter?          AppletTalk.com Forum Index -> Java Discussions View previous topic :: View next topic   Author Message garrett Guest Posted: Thu Feb 22, 2007 11:24 pm    Post subject: Modify java interpreter? Hi, There are some applets that I execute from the web which I want you to modify how they are displayed on my computer. This changes involves making fonts larger or creating hot keys that will allow me to input certain text strings into certain dialog boxes. This might mean I would modify my local java interpreter. Am I right? If I modify the interpreter, will it still allow me to execute applets from the web? Another question is how do I modify this (jre?). I appreciate any advice Garrett Back to top Donkey Hot Guest Posted: Fri Feb 23, 2007 3:59 am    Post subject: Re: Modify java interpreter? "garrett" <garrett_009 (AT) earthlink (DOT) net> wrote in news:0801b4-bff.ln1 (AT) news2 (DOT) homelinux.org: Quote: Hi, There are some applets that I execute from the web which I want you to modify how they are displayed on my computer. This changes involves making fonts larger or creating hot keys that will allow me to input certain text strings into certain dialog boxes. This might mean I would modify my local java interpreter. Am I right? If I modify the interpreter, will it still allow me to execute applets from the web? Another question is how do I modify this (jre?). I appreciate any advice Garrett You can't modify jre because it's source code is not available. -- Keep grandma off the streets -- legalize bingo. Back to top Lew Guest Posted: Fri Feb 23, 2007 8:10 am    Post subject: Re: Modify java interpreter? "garrett" wrote: Quote: There are some applets that I execute from the web which I want you to modify how they are displayed on my computer. This changes involves making fonts larger or creating hot keys that will allow me to input certain text strings into certain dialog boxes. This might mean I would modify my local java interpreter. Am I right? If I modify the interpreter, will it still allow me to execute applets from the web? Another question is how do I modify this (jre?). Donkey Hot wrote: Quote: You can't modify jre because it's source code is not available. That is not really true. The JRE source code actually is available. However, modifying the JRE to modify code behavior is a lot like rebuilding your CD player to make the music louder. It would be very difficult, completely non-standard, likely not to work well, extremely frustrating, and would void the warranty. If you have the source code to the applet, you can change its behavior. Otherwise you are pretty much stuck with what the applet's author decided. - Lew Back to top Marc Guest Posted: Mon Feb 26, 2007 3:01 pm    Post subject: Re: Modify java interpreter? Lew wrote: Quote: "garrett" wrote: There are some applets that I execute from the web which I want you to modify how they are displayed on my computer. This changes involves making fonts larger or creating hot keys that will allow me to input certain text strings into certain dialog boxes. This might mean I would modify my local java interpreter. Am I right? If I modify the interpreter, will it still allow me to execute applets from the web? Another question is how do I modify this (jre?). Donkey Hot wrote: You can't modify jre because it's source code is not available. That is not really true. The JRE source code actually is available. However, modifying the JRE to modify code behavior is a lot like rebuilding your CD player to make the music louder. It would be very difficult, completely non-standard, likely not to work well, extremely frustrating, and would void the warranty. You'd have to ask users to download your patch or JRE version first... which would need another applet or script to detect it. Applets didn't take off big time because of the need for one JRE... having many would be very bad! Back to top garrett Guest Posted: Thu Mar 08, 2007 2:25 am    Post subject: Re: Modify java interpreter? Hi Lew, I am glad you know these things. I remember reading that you can download and compile the JRE Source Code. I am worried that when I introduce my few lines of code for allowing keyboard shortcuts, I'll get a bunch of errors and abortings I don't know how to fix. Plus, I don't know where to put the compiled executable. Is there some place that can give me a step by step guide for how to build this and where to put the file EXE? Also, if I am using Internet Explorer, would the JRE be part of Microsoft's copyrighted Java interpruter? Is there any free access to the source code? By asking all of these questions, I think I am making a mountain of a mole hill. I wondered if there is another solution to the problem. I was looking for a way to allow me to choose a keyboard shortcut to insert custom text into a certain field. Is there any other way to do this? Maybe a change to the web browser? Thanks for your help. Garrett "Lew" <lew (AT) nospam (DOT) lewscanon.com> wrote in message news:<RbadnXraK_BGx0PYnZ2dnUVZ_h-vnZ2d (AT) comcast (DOT) com>... Quote: "garrett" wrote: There are some applets that I execute from the web which I want you to modify how they are displayed on my computer. This changes involves making fonts larger or creating hot keys that will allow me to input certain text strings into certain dialog boxes. This might mean I would modify my local java interpreter. Am I right? If I modify the interpreter, will it still allow me to execute applets from the web? Another question is how do I modify this (jre?). However, modifying the JRE to modify code behavior is a lot like rebuilding your CD player to make the music louder. It would be very difficult, completely non-standard, likely not to work well, extremely frustrating, and would void the warranty. If you have the source code to the applet, you can change its behavior. Otherwise you are pretty much stuck with what the applet's author decided. - Lew Back to top Lew Guest Posted: Fri Mar 09, 2007 8:10 am    Post subject: Re: Modify java interpreter? garrett wrote: Quote: I remember reading that you can download and compile the JRE Source Code. I am worried that when I introduce my few lines of code for allowing keyboard shortcuts, I'll get a bunch of errors and abortings I don't know how to fix. Plus, I don't know where to put the compiled executable. Is there some place that can give me a step by step guide for how to build this and where to put the file EXE? Also, if I am using Internet Explorer, would the JRE be part of Microsoft's copyrighted Java interpruter? Is there any free access to the source code? Microsoft does not have a Java interpreter to my knowledge, copyrighted or not. Quote: By asking all of these questions, I think I am making a mountain of a mole hill. I wondered if there is another solution to the problem. I was looking for a way to allow me to choose a keyboard shortcut to insert custom text into a certain field. Is there any other way to do this? Maybe a change to the web browser? I recommend that you do not rewrite the Java engine to accomplish a user-interface goal. It is a really, really bad idea. Java is a language that gives you the tools to write user interfaces. It already has keyboard shortcuts. (Swing calls them "mnemonics".) Why would you rewrite the tool when it is a tool to write what you want in the first place? So do not rewrite Java for the purpose of gaining keyboard shortcuts. This is especially urgent because Java already provides the ability to code keyboard shortcuts. Read the "Java Swing Tutorial" on java.sun.com to find out the right way to do this kind of thing. For example, <http://java.sun.com/docs/books/tutorial/uiswing/components/button.html> And for Pete's sake, do not rewrite the Java engine. -- Lew Back to top Marc Guest Posted: Sat Mar 10, 2007 12:48 am    Post subject: Re: Modify java interpreter? Lew wrote: Quote: Microsoft does not have a Java interpreter to my knowledge, copyrighted or not. By asking all of these questions, I think I am making a mountain of a mole hill. I wondered if there is another solution to the problem. I was looking for a way to allow me to choose a keyboard shortcut to insert custom text into a certain field. Is there any other way to do this? Maybe a change to the web browser? I recommend that you do not rewrite the Java engine to accomplish a user-interface goal. It is a really, really bad idea. Java is a language that gives you the tools to write user interfaces. It already has keyboard shortcuts. (Swing calls them "mnemonics".) Why would you rewrite the tool when it is a tool to write what you want in the first place? So do not rewrite Java for the purpose of gaining keyboard shortcuts. This is especially urgent because Java already provides the ability to code keyboard shortcuts. Read the "Java Swing Tutorial" on java.sun.com to find out the right way to do this kind of thing. For example, http://java.sun.com/docs/books/tutorial/uiswing/components/button.html And for Pete's sake, do not rewrite the Java engine. Don't worry about Pete. I'm sure anyone contemplating a rewrite wouldn't have the skill anyway, and while they went off to learn it, they'd change their mind. Having said that, my Linux distro felt the need to rewrite it, I'd rather they just didn't include it, and linked to Sun's download site. 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