💾 Archived View for gem.sdf.org › s.kaplan › cheatsheets › programming-languages › objective-c.md captured on 2024-08-31 at 12:51:14.
⬅️ Previous capture (2023-09-28)
-=-=-=-=-=-=-
# Objective-C Cheatsheet Objective-C is a programming language used primarily for developing applications for Apple's Mac OS X and iOS operating systems. Here is an overview of its features, code blocks, and resources. ## Features - Objective-C is an object-oriented programming language. - It is a superset of the C programming language, meaning that it includes all of the features of C as well as additional features for object-oriented programming. - Objective-C uses a dynamic runtime system, which allows for features such as late binding and dynamic method resolution. - Objective-C is the primary programming language used for developing applications for Apple's Mac OS X and iOS operating systems. ## Code Blocks ### Variables Variables are used to store data that can be used later in the program.
int variableName = value;
### Methods Methods are code blocks that perform a specific task. They can be called by other parts of the program.
- (void)methodName:(parameterType)parameterName {
// code to be executed
}
### Conditionals Conditionals allow the program to make decisions based on certain conditions.
if (condition) {
// code to be executed if condition is true
} else if (otherCondition) {
// code to be executed if otherCondition is true
} else {
// code to be executed if neither condition is true
}
### Loops Loops allow the program to repeat a set of instructions.
for (int i = 0; i < 10; i++) {
// code to be executed
}
### Objects Objective-C is an object-oriented programming language, and objects are a fundamental part of the language.
@interface ClassName : SuperclassName
// properties and methods
@end
@implementation ClassName
// implementation of methods
@end
## Resources Here are some resources for learning and using Objective-C: - [Objective-C Programming Language](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html) - [Objective-C subreddit](https://www.reddit.com/r/ObjectiveC/) - [Objective-C on Stack Overflow](https://stackoverflow.com/questions/tagged/objective-c)