Objective-C is a programming language that is commonly used in the Apple environment for developing applications for macOS, iOS, watchOS, and tvOS. It is an object-oriented language that adds features to the C programming language, making it easier to develop software for Apple devices. Objective-C is important for Apple developers as it allows them to create apps that can take advantage of the full capabilities of Apple's hardware and software.

Objective-C is the primary language used for developing applications for Apple platforms, including macOS and iOS. It provides a rich set of frameworks and libraries that make it easier to build user-friendly and feature-rich applications. Objective-C is also compatible with Swift, another programming language used in the Apple environment, allowing developers to seamlessly integrate code written in both languages.

Examples:

1. Creating a simple Objective-C class:

   
   @interface MyClass : NSObject
   @property (nonatomic, strong) NSString *name;
   - (void)printName;
   @end

@implementation MyClass

• (void)printName { NSLog(@"Name: %@", self.name); } @end

2. Using Objective-C in an iOS app:

   
   #import <UIKit/UIKit.h>

@interface ViewController : UIViewController @property (nonatomic, strong) IBOutlet UILabel *label;

• (IBAction)buttonTapped:(id)sender; @end

@implementation ViewController

• (IBAction)buttonTapped:(id)sender { self.label.text = @"Button Tapped"; } @end