UITableview Demo-Example cell value over writing

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--------------------------------------------------------AppDelegate.h--------------------------------------------------
#import <UIKit/UIKit.h>

@class ViewController;

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@property (strong, nonatomic) ViewController *viewController;

@end  

---------------------------------------------------------AppDelegate.m-------------------------------------------------

#import "AppDelegate.h"
#import "ViewController.h"

@implementation AppDelegate

@synthesize window = _window;
@synthesize viewController = _viewController;

- (void)dealloc
{
    [_window release];
    [_viewController release];
    [super dealloc];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
    // Override point for customization after application launch.
    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];
    self.window.rootViewController = self.viewController;
    [self.window makeKeyAndVisible];
    return YES;
}

@end
----------------------------------------------------ViewController.xib----------------------------------------------------

 in xib drag adn drop tableview in view

then give reffernce to it....
reference to delegate....also



----------------------------------------------------ViewController.h----------------------------------------------------

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
    IBOutlet UITableView *tbl;
}
@property(nonatomic,retain) IBOutlet UITableView *tbl;
@end


--------------------------------------------------ViewController.m------------------------------------------------------

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

// Return how many rows in the table
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 10;
}

// Return a cell for the ith row
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Use re-usable cells to minimize the memory load
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:nil];
//dequeueReusableCellWithIdentifier:nil is not overload the cell value
    if (!cell)  {
        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:nil] autorelease];
//reuseIdentifier:nil is not overload the cell value both place must use....
    }
   
    // Set up the cell's text
    cell.textLabel.text = [[UIFont familyNames] objectAtIndex:[indexPath row]];
   // cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;



//the above line show discloser button (arrow button) in all cell
//    cell.hidesAccessoryWhenEditing = NO;
    return cell;
}
@end