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added NeXTStep Links / translated to english
(added NeXTStep Links / translated to english) |
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== Hello World == | == Hello World == | ||
Xcode, Interface Builder und Co. | Xcode, Interface Builder und Co. are very powerful tools, but sometimes they seem to make things a little bit more complicated than they really are. Here's a short program in Objective-C: | ||
<source lang="objc"> | <source lang="objc"> | ||
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// Hello World! | // Hello World! | ||
printf("About to print the most important message...\n"); | |||
NSLog(@"Hello World!\n"); | |||
[pool release]; | [pool release]; | ||
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</source> | </source> | ||
You can compile either with a simple Editor that supports this (e.g. [http://macromates.com/ TextMate]: Actions: Run) - or you use the gcc compiler with Bash (Terminal.app): | |||
<source lang="bash"> | <source lang="bash"> | ||
cd ~/Path/to/HelloWorld.m | cd ~/Path/to/HelloWorld.m | ||
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== Objective-C == | == Objective-C Introduction == | ||
* [http://en.wikipedia.org/wiki/Objective-C en.wikipedia.org/wiki/Objective-C] - | * [http://en.wikipedia.org/wiki/Objective-C en.wikipedia.org/wiki/Objective-C] - very good, because short & intrinsic Overview | ||
* [http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/ObjectiveC/Introduction/introObjectiveC.html Objective-C] - | * [http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/ObjectiveC/Introduction/introObjectiveC.html Objective-C] - official Apple Docs on Objective-C | ||
== Objective-C versus ... == | == Objective-C versus ... == | ||
* [http://www.approximity.com/ruby/Comparison_rb_st_m_java.html Comparison Chart] between ObjC, C++, Java, Ruby, Smalltalk, ... | * [http://www.approximity.com/ruby/Comparison_rb_st_m_java.html Comparison Chart] between ObjC, C++, Java, Ruby, Smalltalk, ... | ||
== NeXTStep == | |||
Cocoa and Objective-C kind of belong to each other. Usually you'll hear that Objective-C is only useful on Mac OS and bound to Apple Stuff only, but this is not true: While NeXTStep originated over 20 years ago, there's also GNUstep which aims to bring Cocoa to all major OS (*nix & Windows): | |||
* [http://www.gnustep.org/ GNUstep.org] | |||
** [http://en.wikipedia.org/wiki/GNUstep GNUstep on Wikipedia] | |||
** [http://en.wikipedia.org/wiki/NeXTStep History of NeXtStep] | |||
Basically GNUstep's Project Center is like Xcode and Gorm is like Interface Builder. | |||
...btw, that's where all the NS-Prefixes come from ('''N'''eXT'''S'''tep), eg in NSObject, NSArray, ... | |||
{{Template:iPhoneDev}} | {{Template:iPhoneDev}} | ||