ios - How to create and use object with Objective-C? -

im programming objective c ios. have problem...i create class object item.h

@interface item : nsobject { nsstring *date; nsmutablearray *a; nsmutablearray *b; nsmutablearray *c; nsmutablearray *d; nsmutablearray *e; nsmutablearray *f; nsmutablearray *g;}  - (id)init; - (void)setdate:(nsstring *)dategio; - (void)adda:(nsstring *)i; - (void)addb:(nsstring *)i; - (void)addc:(nsstring *)i; - (void)addd:(nsstring *)i; - (void)adee:(nsstring *)i; - (void)addf:(nsstring *)i; - (void)addg:(nsstring *)i; - (nsmutablearray *)geta; - (nsmutablearray *)getb; - (nsmutablearray *)getc; - (nsmutablearray *)getd; - (nsmutablearray *)gete; - (nsmutablearray *)getf; - (nsmutablearray *)getg; @end 

and item.m

#import "mealsitem.h"  @implementation mealsitem  - (id)init { self = [super init]; if(self) {     nsstring *date = @"";     nsmutablearray *a = [[nsmutablearray alloc] init];     nsmutablearray *b = [[nsmutablearray alloc] init];     nsmutablearray *c = [[nsmutablearray alloc] init];     nsmutablearray *d = [[nsmutablearray alloc] init];     nsmutablearray *e = [[nsmutablearray alloc] init];     nsmutablearray *f = [[nsmutablearray alloc] init];     nsmutablearray *g = [[nsmutablearray alloc] init]; } return self; }  - (void)adda:(nsstring *)i { [a addobject: i]; }  - (void)addb:(nsstring *)i { [b addobject: i]; }  - (void)addb:(nsstring *)i { [b addobject: i]; }  - (void)addd:(nsstring *)i { [d addobject: i]; }  - (void)adde:(nsstring *)i { [e addobject: i]; }  - (void)addf:(nsstring *)i { [f addobject: i]; }  - (void)addg:(nsstring *)i { [g addobject: i]; }  - (nsmutablearray *)geta { return a;  }  - (nsmutablearray *)getb { return b; }  - (nsmutablearray *)getc { return c; }  - (nsmutablearray *)getd { return d; }  - (nsmutablearray *)gete { return e; }  - (nsmutablearray *)getf { return f; }  - (nsmutablearray *)getg { return g; }  @end 

in object save string in specific array. in first view (the main of project) initialize object

#import <uikit/uikit.h> #import "item.h"  @interface first_view : uiviewcontroller { @public item *ok; }  @property (nonatomic, retain) item *ok;  @end 

and in .m

#import "first_view.h" #import "item.h"  @interface first_view ()  @end  @implementation first_view  @synthesize ok;  - (void)viewdidload { [super viewdidload];  ok = [[item alloc] init];  }  @end 

the problem have read , modify object initialize in first_view, using method of "item.m", class. in other class use

first_view *first = [[first_view alloc] init]; 

and try modify object cant. can if use

first.ok = [[item alloc] init]; 

but dont want initialize again object use object created in first_view. how possible modify object without initialize again object??

the code in item.m / item.h doesn't make sense me whatsoever.

1. you trying declare instance variables named 1, 2, 3, 4, 5, 6, 7. that's nonsense.

2. you explicitly declaring getter , setter methods. that's creating unnecessary work yourself. use @property.

3. your init method doesn't think does. creates new objects, doesn't assign them instance variables, local variables in init method. means lost init returns. , tried name these variables 1, 2, 3, 4, 5, 6, 7 illegal , nonsense.

4. where "breakfast" etc. come from?