Loading NSArray UITableViewController - objective-c

Question

I have a tabbed view controller and I put a table view in it but when I run the program I got this EXC_BAD_ACCESS signal.
The array does not get loaded and produces this error.
Here is my code:
ContactsViewController.h
#import <UIKit/UIKit.h>
#interface ContactsViewController : UITableViewController <UITableViewDataSource,UITableViewDelegate>
#property (nonatomic ,retain) NSArray *items;
#end
ContactsViewController.m
#import "ContactsViewController.h"
#interface ContactsViewController ()
#end
#implementation ContactsViewController
#synthesize items;
- (id)initWithStyle:(UITableViewStyle)style {
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
items = [[NSArray alloc] initWithObjects:#"item1", #"item2", "item3", nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [items count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
if (cell == nil) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
return cell;
}
#end

Answer 1

The problem with your code lies (as the debugger tells you) in the following line:
items = [[NSArray alloc] initWithObjects:#"item1", #"item2", "item3", nil];
Take a closer look at "item3". There is no # sign in front of it so it is not an NSString object but a plain old C string. You can only put objects into an NSArray.
Change it to
items = [[NSArray alloc] initWithObjects:#"item1", #"item2", #"item3", nil];
or even simpler
item = #[#"item1", #"item2", #"item3"];

Answer 2

Without the rest of the code it's not possible to say for sure what the problem is, but you should access the variable through the property in the following way.
self.items = ...
Also consider using the shorthand array notation, like this.
self.items = #[#"Item 1", #"Item 2", #"Item 3"];
IMO: The only time you should use variables directly is in an overriden property accessory.
Also note that if you do want to use the variable directly you should change the synthesize command to the following #synthesize items = variableName; This puts a name, variableName on the underlying variable used in the property. You can then access the variable without going through the property.