Sample.m

//compiled with compileonline.com
//http://www.compileonline.com/compile_objective-c_online.php
//also compiled using GNUSetup on windows. 
#import <Foundation/Foundation.h>



@interface Book : NSObject
{
   char * title;
   char * author;
   int  year;
}

 @property char * title;
 @property char * author;
 @property int  year;

@end


@implementation Book


-(id)init
{
    self = [super init];
    
    if (self) {
            title  = "TitleDefault";
            author = "AuthorDefault";
            year = 1800;
    }
    return self;

} 

-(id)init:(char *)aTitle  auth:(char *)aAuthor ypub:(int)aYear;
{
    self = [super init];
    
    if (self) {
            title  = aTitle;
            author = aAuthor;
            year = aYear;
    }
    return self;

} 

@synthesize title;
@synthesize author;
@synthesize year;

@end



int main (int argc, const char * argv[])
{
   NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
   
   // Create book1 object of type Book
   Book *book1 = [[Book alloc]init ];  
   // Create book2 object of type Book
   Book *book2 = [[Book alloc]init : "Author Name"  auth:"Title Name" ypub:1900];    
  
   NSLog(@"%s", [book1 title]);
   NSLog(@"%s", [book1 author]);
   NSLog(@"%d", [book1 year]);


    NSLog(@"\n");
    
   NSLog(@"%s", [book2 title]);
   NSLog(@"%s", [book2 author]);
   NSLog(@"%d", [book2 year]);
  
    NSLog(@"\n");
  
   [book1 setTitle:"Objective C Fundamentals"];
   [book1 setAuthor:"Prasad Nair"];
   [book1 setYear:2014];
   
   NSLog(@"%s", [book1 title]);
   NSLog(@"%s", [book1 author]);
   NSLog(@"%d", [book1 year]);
   
   NSLog(@"\n");
   
   [book2 setTitle:"Advanced Objective C"];
   [book2 setAuthor:"Prasad Nair"];
   [book2 setYear:2015];
   
   NSLog(@"%s", [book2 title]);
   NSLog(@"%s", [book2 author]);
   NSLog(@"%d", [book2 year]);
   
   
   [pool drain];
   return 0;
}