Checking Programming Language Version Xcode ide

Pretty straight forward Topic line. With xcode (2.5) how do I check which version of any particular programming language.
But I am asking because I am in the learning stages, and that is a very important question, so I would like a answer that suites all of the programming languages that come default with xcode ide.

Launch the Terminal application and go to the following directory:
/usr/bin
Run the ls command to list the contents of the directory. Look for the gcc and g++ entries. GCC is the compiler Xcode 2.5 uses for C and Objective-C, and g++ is the compiler Xcode 2.5 uses for C++. To see the default version of gcc, run the following command:
gcc -v

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Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
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i want to learn swift programing language.it seems i need xcode 6 for learning swift.so
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ershad459 wrote:
Can you explain it with more details.?
it seems swift is more easiyer than objective c.
and you said i most learn objective c and swift.right??
Not sure how much easier Swift will be to learn over C/Objective-C, took a quick look through the manual and while somethings are simpler overall the impression I got is that it will have it's own problems. Any language that is complex enough to do complex programs will be difficult, at least at first. What makes one language harder then another is how consistent. If you do one thing one way one time and then do it another way another time the language will be a pain to work with no matter how 'easy' it is. From what I've read I'm a bit leery of Switf's consistency, but only time will tell.
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noah977 wrote:
XCode must have something similar. Finiding it and deciphering the file format is the tricky part.
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Tom Jerry wrote:>
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Edited by: gbhatia8 on Sep 9, 2010 7:04 AM

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I have been able to use a desktop icon and set the path to a program.class file and run it--making the program window appear but the java.exe Dos window also appears.
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<root project dir>: (below this you'll find)
/src - location of all src files
/src/java - the location of the project specific java code
/src/examples - if need be (especially useful for frameworks and API's you wish to share) show example applications using the output of the /src/java code
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/dist - the location that the build script puts all distributable files. This would be any executable .jar file, any .zip file, perhaps other files necessary for distribution. If you were making a large application and planned to burn it to disk, instead of a single .zip file, you may actually build the sub-dirs below the /dist/<your app> type of dir, so that you can simply burn from that <your app> dir to the root of the cd.
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/doc - location of any documentation, including the JavaDoc produced by the build script from your src.
<project root> - this is the location of your build.xml ant build script, if need be. The build script, as you would learn in the book, is set up so that you can move it anywhere and it will still build your project correctly. You may opt to put it in the /scripts dir instead and keep the project root super clean.
/misc or /etc - common location to put things like properties files, misc files used to build projects. For example, in the building of a EJB application (.jar or .ear file), you will no doubt need the META-INF/application.xml file. Or in a .jar file you need a special META-INF/manifest.mf file. The /misc or /etc dir is a good candidate for these types of things. You can even package it up in your app so that in the .jar file you have /etc/properties/somepropertyfile.properties, and in your code do a simple getClass().getClassLoader().getResource("/etc/properties/somepropertyfile.properties") to always ensure you pull it from this directory. OR, your build script can "change" the location this file goes. It is all up to you.
That is what I use for all my projects, the dir structure anyway. What you do to build your .jar/.zip files is up to you. You usually don't need to pull the /src dir, the /dist dir, etc into your .jar/.zip files. Normally you'll have the compiled classes at the root. So in your project dir on your disk, you may have <project root>/build/classes/java/org/mycompany/ui/Main.class, and in your .jar file it would simply be <root of .jar file>/org/mycompany/ui/Main.class, and your build file can easily "change" the root path (using <zipfileset prefix=""> task) to change the path of any file. But more of that can be learned in that book and by looking up resources on the net. The Ant JavaDoc API is very good at explaining most of these as well, and there are TONS of ant scripts in most projects to look at for examples.
The file creation, well, as I said Ant has built in tasks you can use to create .jar files, .zip files, etc. All of that is all built in to how Ant works.
As for java.exe, well, in a professional app, you usually do one of two things. You either write a simple C/C++/Delphi/some other languages .exe wrapper (for windows) that internall executes the java.exe and runs the JVM to hide the window, as well as provide a .exe file to look more "native", or you run javaw.exe, which hides the Console output window for most apps. NOTE: if you create a .bat shortcut on your desktop to javaw.exe, you will STILL get a console window that shows up. ALL shortcuts to .bat files will always create a console window. Many java developers don't understand why they run javaw.exe from a shortcut on their desktop and still see the console window.
Now, hopefully that helped a bit. But if not, or you still have questions, I am watching this thread so fire away and I'll help more.

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Last edited by chimeric (2008-01-19 11:12:56)

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