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I followed Objective-C beginner's guide and created a few files. Then I created an Empty Project in XCode and imported the files. Now I want to compile and run them from XCode. How can I do that? The Run/Debug menu option in XCode doesn't seem to be available.

What template should I use in XCode to write a "Hello World" application in Objective-C not using Cocoa? I can't find any appropriate template. The Empty Project doesn't seem to work for this.

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    There are extensive guides available via the Help menu Commented Jan 18, 2011 at 7:50
  • @trojanfoe: I only find guides using Cocoa, not only Objective-C. Commented Jan 18, 2011 at 8:03
  • @trojanfoe: Where in the documentation can I find instructions for running a simple Hello World coded in Objective-C using XCode? Commented Jan 18, 2011 at 8:40
  • @Jonas: Here: developer.apple.com/library/mac/documentation/DeveloperTools/… Commented Jan 18, 2011 at 8:53
  • @Jonas: The guide you linked uses the Cocoa Foundation framework. You're drawing a distinction that isn't there. Commented Jan 18, 2011 at 8:55

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What template should I use in XCode to write a "Hello World" application in Objective-C not using Cocoa?

You should create a command line tool with the Foundation framework as follows: alt text

I realize that you don't want to use Cocoa, and I realize that Foundation is the "framework that contains the non-GUI Cocoa classes." (Learning Objective-C 2.0) However, this is the recommended method for creating a non-GUI Objective-C application by all of the following:

  • Learn Objective-C on the Mac by Mark Dalrymple and Scott Knaster. As stated on p. 9, "All the programs in this book are based on the Foundation framework."
  • Learning Objective-C 2.0 by Robert Clair.
  • Learn C on the Mac by Dave Mark. On p. 320 in Chapter 12: Where Do You Go from Here, Dave Mark states that the command line tool with the Foundation framework "is the starting point for your next big adventure—mastering Objective-C."
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What template should I use in XCode to write a "Hello World" application in Objective-C not using Cocoa?

You probably want a foundation command line tool.

In Xcode (assuming 3.2.x) select File/New Project...

In the window that appears, on the left hand side, select Mac OS X application. The top right hand pane should display four options

  • Cocoa application
  • Cocoa Applescript application
  • Quartz composer application
  • Command line tool.

It's the last option you want.

Having selected command line tool, a drp down list should appear below the pane, from which you should select foundation.

That will give you a hello world application which is ready to be compiled and run.

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Instead of creating a new empty project you should use one of the standard project templates, then add your files to that.

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What project type should I use? I'm not using Cocoa, and on the command line project only C is available as language, not Objective-C. Can't I follow this tutorial using XCode?
@Jonas: The "Foundation Tool" project type is an Objective-C command-line tool.

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