Returning to your Xcode project window, the right pane shows the contents of the file called main. Table 2.1 lists other commonly used filename extensions. m as the last two characters of the filename (known as its extension).

Then you can decide how you want to work with your programs throughout the rest of this book. Let’s go through the sequence of steps using both methods. You can both compile and run your program using Xcode, or you can use the Clang Objective-C compiler in a Terminal window. First program exampleīefore we go into a detailed explanation of this program, we need to cover the steps involved in compiling and running it. Without further ado, Program 2.1 shows an Objective-C program to accomplish this task: Program 2.1. To begin, let’s pick a rather simple example: a program that displays the phrase “Programming is fun!” on your screen. We want you to understand the steps involved in keying in a program and compiling and running it. You won’t work with objects just yet that’s the topic of the next chapter. Have extensive experience developing and delivering high quality software on macOS, this could include previous experience with Swift, Objective-C, SwiftUI, AppKit, Xcode, XPC. macOS Development C/C++/C/Obj-C Programming Data Processing Network Management Distributed Enterprise Web Solutions Web Solutions Over the years, we’ve worked on many cloud, data management, and cybersecurity projects, building extensive expertise in fast and secure web application development. In this chapter, we dive right in and show you how to write your first Objective-C program.

Objective c macos