Programming in Objective-C

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In order to help you understand the steps involved in keying in a program and compiling and running it, this chapter shows you how to write your first simple Objective-C program.

In this chapter, we dive right in and show you how to write your first Objective-C program. You won’t work with objects just yet; that’s the topic of the next chapter. We want you to understand the steps involved in keying in a program and compiling and running it.
To begin, let’s pick a rather simple example: a program that displays the phrase “Programming is fun!” on your screen. Without further ado, Program 2.1 shows an Objective-C program to accomplish this task:

Program 2.1.

// First program example 

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[])
{
   @autoreleasepool {
      NSLog (@"Programming is fun!");
   }
   return 0;
}

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