O'Reilly logo

Programming in Objective-C, Fifth Edition by Stephen G. Kochan

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

2. Programming in Objective-C

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;}

Compiling and Running Programs

Before we go into a detailed explanation ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required