First Program for iPhone

 Hello world ..... THis is the first application i made for iPhone.Take a lebel,text box, and a button...
Then type the code....

//

//  ShitShipAppDelegate.h

//  ShitShip

//

//  Created by JUBAYER Ahmed on 3/27/11.

//  Copyright CODEMAGNETS 2011. All rights reserved.

//

#import <UIKit/UIKit.h>

@class ShipController;

@interface ShitShipAppDelegate : NSObject <UIApplicationDelegate> {

    UIWindow *window;

ShipController *shipController;

}

@property (nonatomic, retain) IBOutlet UIWindow *window;

@property (nonatomic, retain) ShipController *shipController;

@end

//

//  ShitShipAppDelegate.m

//  ShitShip

//

//  Created by JUBAYER Ahmed on 3/27/11.

//  Copyright CODEMAGNETS 2011. All rights reserved.

//

#import "ShitShipAppDelegate.h"

#import "ShipController.h"

@implementation ShitShipAppDelegate

@synthesize window;

@synthesize shipController;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    ShipController *viewShipController = [[ShipController alloc]initWithNibName:@"ShipView" bundle:[NSBundle mainBundle]];

self.shipController = viewShipController;

[viewShipController release];

UIView *controllerView = [viewShipController view];

[window addSubview:controllerView];

//[window addSubview:[viewShipController view]];

[window makeKeyAndVisible];

}

- (void)dealloc {

[shipController release];

    [window release];

    [super dealloc];

}

@end

//

//  ShipController.h

//  ShitShip

//

//  Created by JUBAYER Ahmed on 3/27/11.

//  Copyright 2011 CODEMAGNETS. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface ShipController : UIViewController {

UITextField *textField;

UILabel *label;

NSString *string;

}

@property(nonatomic,retain)IBOutlet UITextField *textField;

@property(nonatomic,retain)IBOutlet UILabel *label;

@property(nonatomic,copy) NSString *string;

-(IBAction)changeGreeting:(id)sender;

@end

//

//  ShipController.m

//  ShitShip

//

//  Created by JUBAYER Ahmed on 3/27/11.

//  Copyright 2011 CODEMAGNETS. All rights reserved.

//

#import "ShipController.h"

@implementation ShipController

@synthesize textField;

@synthesize label;

@synthesize string;

-(IBAction)changeGreeting:(id)sender{

self.string = textField.text;

NSString *nameString = string;

if([nameString length] == 0){

nameString = @"world";

}

NSString *greeting = [[NSString alloc] initWithFormat:@"Hello. %@!",nameString];

label.text = greeting;

[greeting release];

}

- (void)didReceiveMemoryWarning {

    // Releases the view if it doesn't have a superview.

    [super didReceiveMemoryWarning];

    

    // Release any cached data, images, etc that aren't in use.

}

- (void)viewDidUnload {

    [super viewDidUnload];

    // Release any retained subviews of the main view.

    // e.g. self.myOutlet = nil;

}

- (void)dealloc {

[textField release];

[label release];

[string release];

    [super dealloc];

}

@end