Hello World! Build Your First App Using Swift

By now you should have installed Xcode 7 and some understandings of Swift language. If you haven't done so, check out the previous chapter about what you need to begin iOS programming. We'll use Xcode 7.0 (or up) to work on all exercises in this book. You may have heard of the "Hello World" program if you have read any programming book before. Hello World is a program for the first-time programmer to create. It's a very simple program that outputs "Hello, World" on the screen of a device.

Introduction to Swift Playground

In the Worldwide Developer Conference 2014, Apple surprised all iOS developers by launching a new programming language called Swift. Swift is advertised as a "fast, modern, safe, interactive" programming language. The language is easier to learn and comes with features to make programming more productive.

Getting Started with Xcode 7 Development

So you want to create your own app? That's great! Creating an app is a fun and rewarding experience. But before we begin to dive into iOS programming, let's first go through the tools you need to build an app.