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Dec 30th, 2007, 2:39 PM
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#1 |
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Programmer
Join Date: Dec 2006
Posts: 41
Rep Power: 0
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Help with opensource program
Hey everybody. I've been going onto Sourgeforge.net and similar open source code sites but have been having some problems. I have programmed in Java before but when I download these open source programs I don't understand how to get to the code. There are a whole bunch of .JAR files and don't know how to open them. Could anyone give me a step by step of how to open an open source Java program?
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Dec 30th, 2007, 4:14 PM
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#2 |
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Expert Programmer
Join Date: Nov 2005
Posts: 837
Rep Power: 3
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Re: Help with opensource program
jar xf jar-file [archived-file(s)] |
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Dec 30th, 2007, 6:22 PM
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#3 |
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Caffeinated Neural Net
Join Date: Jun 2005
Location: Dry west coast of Canada
Posts: 928
Rep Power: 4
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Re: Help with opensource program
Java .jar files are just archive files, similar to .zip files. In fact, the formats are identical; the former just use a different extension.
The purpose of these is to pack multiple .class files along with a 'manifest' file that tells the computer which one to run. Then, when you double-click the .jar file or otherwise 'open' it on your system, if everything's set up properly, it should decompress the archive to a temporary location, and run the file specified in the manifest.
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A man's knowledge is like an expanding sphere, the surface corresponding to the boundary between the known and the unknown. As the sphere grows, so does its surface; the more a man learns, the more he realizes how much he does not know. Hence, the most ignorant man thinks he knows it all. - L. Sprague de Camp |
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