//// main.m// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import <Foundation/Foundation.h>#import "Car.h"int main(int argc, const char * argv[]){ Car *car = [Car new]; [car print]; Engine *engine2 = [Engine new]; [engine2 setBrand:@"兰博基尼1026"]; [car setEngine:engine2]; Tire *newTire = [Tire new]; [newTire setBrand:@"永久"]; [car setTire:newTire atIndex:2]; [car print]; return 0;}//// Car.h// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import <Foundation/Foundation.h>#import "Engine.h"#import "Tire.h"@interface Car : NSObject{ Engine *engine; Tire *tire[4];}- (void) print;- (void) setTire: (Tire*)tire atIndex: (int)index;- (Tire*)tireAtIndex: (int)index;- (void)setEngine: (Engine*)engine;- (Engine*)getEngine;@end//Car//// Car.m// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import "Car.h"@implementation Car- (id) init{ if(self = [super init]) { engine = [Engine new]; [engine setBrand:@"法拉利10016"]; tire[0] = [Tire new]; tire[1] = [Tire new]; tire[2] = [Tire new]; tire[3] = [Tire new]; for(int i = 0 ; i < 4 ; i++) [tire[i] setBrand:@"米其林"]; } return self;}//init- (void) print{ NSLog(@"%@" , engine); NSLog(@"%@" , tire[0]); NSLog(@"%@" , tire[1]); NSLog(@"%@" , tire[2]); NSLog(@"%@" , tire[3]);}// print- (void) setTire:(Tire *)_tire atIndex: (int) index{ if(index < 0 || index > 3) { NSLog(@"Index is wrong!"); exit(1); } tire[index] = _tire;}//setTire- (Tire*) tireAtIndex:(int)index{ if(index<0||index>3) { NSLog(@"index is wrong"); exit(1); } return tire[index];}//tireAtIndex- (void)setEngine:(Engine *)_engine{ engine = _engine;}//setEngine- (Engine*)getEngine{ return engine;}//getEngine@end//Car
//// Engine.h// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import <Foundation/Foundation.h>@interface Engine : NSObject{ NSString *brand;}- (void) setBrand: (NSString*) _brand;- (NSString*) getBrand;@end
//// Engine.m// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import "Engine.h"@implementation Engine- (NSString*) description{ return [NSString stringWithFormat:@"I am engine ! my brand is %@",brand];}//description- (void) setBrand:(NSString *)_brand{ brand = _brand;}//setBrand- (NSString*) getBrand{ return brand;}//getBrand@end//Engine
//// Tire.h// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import <Foundation/Foundation.h>@interface Tire : NSObject{ NSString *brand;}- (void) setBrand: (NSString*) brandl;- (NSString*) getBrand;@end//Tire
//// Tire.m// CAR3//// Created by jimzhai on 13-1-24.// Copyright (c) 2013年 jimzhai. All rights reserved.//#import "Tire.h"@implementation Tire- (NSString*) description{ return [NSString stringWithFormat:@"I am a tire. My brand is %@",brand];}//description- (void) setBrand:(NSString *)brandl{ brand = brandl ;}//setBrand-(NSString*) getBrand{ return brand;}//getBrand@end//Tire
