Question

Having some issues with code not executing within the classes I created and thought I initialized and implemented correctly here are all the files. There is a class with an array of another class. Then implemented in the code finally but for some reason none of the NSLog calls seem to execute except the one immediately before [mobdefs createTable] in the main code. All help appreciated…

// Mobdefs.h
@interface Mobdefs : NSObject {

    @public NSMutableArray *mobInfo;
}

@property(retain) NSMutableArray *mobInfo; 

-(void) createTable;

@end

//  Mobdefs.m
#import "Mobdefs.h"
#import "Mobrec.h"

@implementation Mobdefs

@synthesize mobInfo;

- (id) init
{
mobInfo = [[NSMutableArray alloc] init]; 
return self;
}

-(void) addmobrec
{
MobRec *aNewMobRec = [[MobRec alloc] init];
aNewMobRec.mName=@"newbie";
[mobInfo addObject:aNewMobRec];  
[aNewMobRec release]; 
NSLog(@"MobRec Added\n");  
}

-(void) createTable 
{
NSLog(@"Populating mob table.\n"); // *** THIS CODE NEVER SEEMS TO GET EXECUTED
}

@end


//main.h
Mobdefs *mobdef;  


//main.m 
NSLog(@"just before createTable call\n");
[mobdef createTable];   

although the createTable code is called in the main the only NSLog output I get is the ‘just before createtable…’

Answer 1

It doesn’t seem that you have initialized mobdef. Add the following:

mobdef = [[Mobdefs alloc] init];

to your main.m before you invoke the method on it.

Objective-C silently ignore calls on nil, as mobdef would be initialized to initially.