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bananaman
Indestructible
Calc Guru
Joined: 12 Sep 2005
Posts: 1124
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 Posted: 20 Mar 2007 03:10:47 pm Post subject: |
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| I was wondering if it is possible to view the source code for an online java applet. If I could do that it would make it a piece of cake to rewrite games online for other platforms. And it would also help improve my Java abilities. |
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c_plus_plus
My Face Hertz
Active Member
Joined: 30 Jan 2006
Posts: 575
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| Posted: 20 Mar 2007 03:30:54 pm Post subject: |
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| you actually CAN get the source by finding a Java decompiler just Google for one. You can get the class file using the method burr described. After decompiling the first one you may find that you will need to find more class files, which should also be on the website with the applet. |
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Arcane Wizard
`semi-hippie`
Super Elite (Last Title)
Joined: 02 Jun 2003
Posts: 8993
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| Posted: 20 Mar 2007 03:41:22 pm Post subject: |
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| Or learn to read java bytecode. |
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elfprince13
Retired
Super Elite (Last Title)
Joined: 11 Apr 2005
Posts: 3500
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| Posted: 20 Mar 2007 04:27:05 pm Post subject: |
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Arcane Wizard wrote: Or learn to read java bytecode.
[post="99233"]<{POST_SNAPBACK}>[/post]
......
or use Mocha.... |
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Arcane Wizard
`semi-hippie`
Super Elite (Last Title)
Joined: 02 Jun 2003
Posts: 8993
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| Posted: 20 Mar 2007 04:49:40 pm Post subject: |
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| Mocha was already mentioned. |
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frenchcalc1
جان ألعريم
Active Member
Joined: 14 Mar 2007
Posts: 648
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| Posted: 20 Mar 2007 05:49:53 pm Post subject: |
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Arcane Wizard wrote: Mocha was already mentioned.
[post="99235"]<{POST_SNAPBACK}>[/post]
I think he was just emphasizing the easier solution  |
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benryves
Active Member
Joined: 23 Feb 2006
Posts: 564
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| Posted: 21 Mar 2007 06:08:57 am Post subject: |
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Bear in mind that an obfuscator can be used to optimise the size of the final binary (though I guess this is more common in the J2ME world, where size is more important) which will amongst other things remove meaningful names from variables/classes.
Learning from source is seldom a great idea, especially when the comments have been removed.
Last edited by Guest on 21 Mar 2007 06:10:25 am; edited 1 time in total |
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elfprince13
Retired
Super Elite (Last Title)
Joined: 11 Apr 2005
Posts: 3500
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| Posted: 21 Mar 2007 08:44:42 am Post subject: |
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Arcane Wizard wrote: Mocha was already mentioned.
[post="99235"]<{POST_SNAPBACK}>[/post]
people tend to miss things like that especially when followed by unhelpful comments such as yours. and mocha really is the best solution for free decompilations. |
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Arcane Wizard
`semi-hippie`
Super Elite (Last Title)
Joined: 02 Jun 2003
Posts: 8993
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| Posted: 21 Mar 2007 09:07:11 am Post subject: |
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Yeah its not like the internal workings matter when developing for multiple platforms.
E-mail and ask for the source code, anything else is copyright violation anyway.
Last edited by Guest on 21 Mar 2007 09:07:52 am; edited 1 time in total |
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JoeImp
Enlightened
Active Member
Joined: 24 May 2003
Posts: 747
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| Posted: 21 Mar 2007 05:26:12 pm Post subject: |
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Eh, I had another paragraph above this, but then I got his meaning, so I deleted it. I'll leave the rest though, just showing a few decompilers.
Quote: mocha really is the best solution for free decompilations
From the mocha readme:
Quote: Add the full pathname of "mocha.zip" to your CLASSPATH string, for instance:
SET CLASSPATH=c:\myclasses;c:\jdk\mocha.zip
3. INVOCATION
Mocha is invoked from the commandline (i.e. DOS box, if you're using Win95) like this:
java mocha.Decompiler [-v] [-o] Class1.class Class2.class ...
That's pretty freaking ghetto for the "best decompiler" out there. Cavaj or DJ Java work a lot better.
Here's DJ Java: http://www.rit.edu/~jci7794/real_vs_decompiled.jpg
Here's CavaJ: http://www.rit.edu/~jci7794/real2_vs_decompiled.jpg
Cavaj even shows variable declarations, even better decompilation than DJ Java.
Last edited by Guest on 21 Mar 2007 05:38:31 pm; edited 1 time in total |
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bananaman
Indestructible
Calc Guru
Joined: 12 Sep 2005
Posts: 1124
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| Posted: 22 Mar 2007 07:55:40 am Post subject: |
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| Ok, thanks for all your information. I have a mac, so I'm not sure if those decompilers will work, but I can always google for a mac compatable one, (They have to be out there). I mainly want the source to see how they stored the data for an isometric tilemap where things depend upon the sides and centers of the hexes. I am posting this from school and will try some things when I get home, which won't be till a couple of days. |
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