Accessing int value from another class - objective-c

Question

I am having trouble accessing an int property from another class. I know this question has been asked quite a few times however none of the solutions posted in previous questions seem to work. My knowledge in xcode is basic, and I am using this project to develop my skills.
The two classes I have are: HelloWorldLayer and ClassOne. Where ClassOne states the value of int. Both are Cocos2d CCLayer classes (probably not the best class to practice inter-class value access).
ClassOne.h
#interface ClassOne : CCLayer {
int ageClass;
}
#property (nonatomic, readwrite)int ageClass;
#end
ClassOne.m
#implementation ClassOne
#synthesize ageClass = _ageClass;
-(id)init{
if((self=[super init])){
_ageClass = 10;
}
return self;
}
#end
HelloWorldLayer.h
#import "ClassOne.h"
#interface HelloWorldLayer : CCLayer <...> {
ClassOne *agePointer;
}
#property (nonatomic,assign)ClassOne *agePointer;
+(CCScene*)scene;
#end
HelloWorldLayer.m
#import "HelloWorldLayer.h"
#import "AppDelegate.h"
#import "ClassOne.h"
#implementation HelloWorldLayer
#synthesize agePointer = _agePointer;
+(CCScene*)scene...
-(id)init{
if((self=[super init])){
_agePointer.ageClass = self;
NSLog(#"ClassOne int = %#",_agePointer);
}
return self;
}
...
#end
Output Result:
"ClassOne int = (null)"
or "0" if i use "%d" token and "int = x", where the line "int x =_agePointer.ageClass;"
is used.
The result I am after is for the HelloWorldLayer NSLog to display "10", the int value defined in ClassOne.
Any wisdom and corrections on my use of language is greatly appreciated.

Answer 1

Ok Try This:
-(id)init
{
if((self=[super init])){
_agePointer = [[ClassOne alloc] init];
NSLog(#"ClassOne int = %d",_agePointer.ageClass);
}
return self;
}

Answer 2

First of all, when outputting int, always use %d instead of %# in your NSLog.
Second of all, if you are expecting to output 10, you should've instantiated the class first in your HelloWorldLayer.m:
-(id)init{
if (self = [super init]) {
_agePointer = [[ClassOne alloc] init];
NSLog(#"ClassOne int = %#",_agePointer);
}
return self;
}