Source code in the objective-c programming language

#import 

@interface TowersOfHanoi: NSObject {
	int pegFrom;
	int pegTo;
	int pegVia;
	int numDisks;
}

-(void) setPegFrom: (int) from andSetPegTo: (int) to andSetPegVia: (int) via andSetNumDisks: (int) disks;
-(void) movePegFrom: (int) from andMovePegTo: (int) to andMovePegVia: (int) via andWithNumDisks: (int) disks;
@end

#import "TowersOfHanoi.h"
@implementation TowersOfHanoi

-(void) setPegFrom: (int) from andSetPegTo: (int) to andSetPegVia: (int) via andSetNumDisks: (int) disks {
	pegFrom = from;
	pegTo = to;
	pegVia = via;
	numDisks = disks;
}

-(void) movePegFrom: (int) from andMovePegTo: (int) to andMovePegVia: (int) via andWithNumDisks: (int) disks {
	if (disks == 1) {
            printf("Move disk from pole %i to pole %i\n", from, to);
        } else {
 			[self movePegFrom: from andMovePegTo: via andMovePegVia: to andWithNumDisks: disks-1];
			[self movePegFrom: from andMovePegTo: to andMovePegVia: via andWithNumDisks: 1];
			[self movePegFrom: via andMovePegTo: to andMovePegVia: from andWithNumDisks: disks-1];
        }
}

@end

#import 
#import "TowersOfHanoi.h"

int main( int argc, const char *argv[] ) {
	@autoreleasepool {

		TowersOfHanoi *tower = [[TowersOfHanoi alloc] init];

		int from = 1;
		int to = 3;
		int via = 2;
		int disks = 3;

		[tower setPegFrom: from andSetPegTo: to andSetPegVia: via andSetNumDisks: disks];

		[tower movePegFrom: from andMovePegTo: to andMovePegVia: via andWithNumDisks: disks];

	}
	return 0;
}