1#import <Foundation/Foundation.h> 2 3@interface Foo : NSObject 4+(void) doSomethingWithString: (NSString *) string; 5-(void) doSomethingWithNothing; 6@end 7 8@implementation Foo 9+(void) doSomethingWithString: (NSString *) string 10{ 11 NSLog (@"String is: %@.", string); // Set breakpoint here. 12} 13 14+(int) doSomethingElseWithString: (NSString *) string 15{ 16 NSLog (@"String is still: %@.", string); 17 return [string length]; 18} 19 20-(void) doSomethingWithNothing 21{ 22} 23@end 24 25int main() 26{ 27 [Foo doSomethingWithString: @"Some string I have in mind."]; 28 return 0; 29} 30