Objective-c Counter Learning

book.h//Obj-c Learning 1////Created by Itfanr on 14/11/30.//Copyright (c) 2014 ITFANR. All rights reserved.//#import <Foundation/Foundation.h> @interface book:nsobject@property float price;-(ID) Initwithprice: (float) Price; @end

  person.m//  obj-c Learning 1////  created by itfanr on 14/11/ 30.//  copyright  (c)  2014 year  itfanr. all rights reserved.//#import   "Person.h" #import   "Book.h" @implementation  person:nsobject@synthesize book = _book  ;-(void) Setbook: (book *) book{    if (_book != book) {         [_book release] ;        _book  = [book retain] ;    }}    -(Book *) book{     RETURN _BOOK ;       &NBSP, #pragma   mark  initialization-(ID) initwithage: (int) Age   {    self =  [super  init] ;    _age = age ;         return  self;} #pragma  mark  destroy functions   carbon-  (void) dealloc{   [_book release] ;     nslog (@ "person is dealloced"  );     [super dealloc]  ;} @end

main.m//Obj-c Learning 1////Created by Itfanr on 14/11/29.//Copyright (c) 2014 ITFANR. All rights reserved.//#import <Foundation/Foundation.h> #import "Person.h" #import "Book.h" int main (int argc,    const char * argv[]) {Book *book1 = [[book alloc]initwithprice:4.5];    person * p = [[Person alloc] initwithage:18];    P.book = Book1;    [Book1 release];     [P release]; return 0;}

The output is:

2014-11-30 22:38:11.427 obj-c Learning 1[1228:911238] book is dealloced!2014-11-30 22:38:11.428 obj-c learning 1[1228:911238] person is Deallocedprogram ended with exit code:0

No memory leaks were found.

Objective-c Counter Learning