Designed by Brad Cox and Tom Love in the early 1980s, Objective-C was a project to write a pre-processor for C, to add some of the abilities of Smalltalk, Objective-C was the main language used to develop the NeXTSTEP operating system, from which macOS and iOS are derived.
Objective-C is a compiled, general-purpose language that can be used to build anything from command-line utilities to animated GUIs, to domain-specific libraries. It also provides many of the tools needed to maintain large, scalable frameworks.
Like C++, Objective-C was designed to add object-oriented features to C; however, the two languages accomplish this in different ways. Objective-C is more dynamic than C++, deferring most of its decisions to runtime rather than at the time that it is compiled.
Objective-C is also known for its concise naming conventions, which border on the verbose.
Portable Objective-C programs that don't use the Cocoa or Cocoa Touch libraries can also be compiled from any system supported by the GNU Compiler Collection, or Clang.
Cox and Love formed a company, Productivity International, which later became StepStone, to commercialize Objective-C. In 1988, NeXT licensed Objective-C from StepStone, extending its GCC compiler to support the language. In 1992, the first GNU Objective-C runtime was created. In 1996, Apple Computer acquired NeXT, using Objective-C in its new operating system, Mac OS X. Objective-C, NeXT's Objective-C developer tool, Project Builder, and its interface design tool, Interface Builder, were combined to form Xcode. In 2014, Apple introduced Swift, which it described as Objective-C without the C.
Web resources whose topics are focused on the Objective-C programming language are appropriate for this category. This may include tutorials and user groups.
Recommended Resources
Offering a cloud-based version of the Objective-C programming language, clients may opt for one of three levels of access, each of which are compared side-by-side. A free sandbox tier is available only while a cloud application is being developed. Objective-C may also be hosted on a client’s own infrastructure, with two models available. General information about the language is set forth, including full documentation, and information about a custom backend for an application.
http://www.objective-cloud.com/
A subset of C, Objective-C is what makes C object-oriented. The independent website offers a history of the programming language and its relationship with Smalltalk and the Mac operating system, lists its features, and offers a guide to programming with the language, including the fundamentals, Xcode programming, console programming, compound assignment operators, if else statements, switch statements, for loop, do while loop, functions, and pointers.
https://objectivectutorial.org/
OnlineProgrammingBooks: Free Objective-C Books
The site recommends several books on programming in the Objective-C programming language, all of which are available to read free of charge online. The titles and a brief synopsis of each are given, along with a link to a detail page that gives additional information about the book, including a table of contents and other book details, as well as a link to where the book may be viewed online. Titles include Objective-C Succinctly, Objective-C 2.0 Essentials, and Learning Cocoa with Objective-C.
https://www.onlineprogrammingbooks.com/objective-c/
Objective-C is the primary programming language used in writing software for Mac OS X and iOS, and it is a subset of the C programming language, inheriting the syntax, primitive types, and flow control statements of C. On these pages, Apple introduces the language and offers several examples of its proper use, and how the language works with some of the framework classes provided by Cocoa and Cocoa Touch which, although separate from the language, are tightly wound with Objective-C.
https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/
Tutorials Point: Objective-C Tutorial
Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-type messaging to C. This reference offers simple and practical approaches to learning to program with the language. Intended primarily for beginners, the tutorial does assume an awareness of what a computer program and a programming language are. While the tutorial begins at a basic level, it will take the reader through some advanced topics, as well.
https://www.tutorialspoint.com/objective_c/
