Day of Week App - displays day of week for user specified date (UIDatePicker)

PMMainViewController.h

//  PMMainViewController.h
//  SampleProject
//
//  Created by Paola Mata on 12/6/13.
//
//

#import <UIKit/UIKit.h>

@interface PMMainViewController : UIViewController
{
    UILabel *dateLabel;
    UIDatePicker *datePicker;
    UILabel *dayOfWeekLabel;
    UILabel *dayResponseLabel;
    NSString *weekday;
    NSDate *datePicked;   
}

@end

PMMainViewController.m

//
//  PMMainViewController.m
//  SampleProject
//
//  Created by Paola Mata on 12/6/13.
//
//

#import "PMMainViewController.h"

@interface PMMainViewController ()

@end

@implementation PMMainViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
        // Do any additional setup after loading the view.
    self.title = @"Find Day of the Week";
    
    dateLabel =[[UILabel alloc]initWithFrame:CGRectMake(0, 75, 320, 35)];
    dateLabel.textColor = [UIColor grayColor];
    dateLabel.textAlignment = NSTextAlignmentCenter;
    [self.view addSubview:dateLabel];
     dateLabel.text=@"Select a Date";
    
    datePicker =[[UIDatePicker alloc]initWithFrame:CGRectMake(0, 100, 0, 0)];
    datePicker.datePickerMode = UIDatePickerModeDate;
    [self.view addSubview:datePicker];
    datePicked = [[NSDate alloc] init];
    [datePicker addTarget:self
                          action:@selector(dateSelected:)
                forControlEvents:UIControlEventValueChanged];
    
    dayOfWeekLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 350, 320, 35)];
    dayOfWeekLabel.textColor = [UIColor grayColor];
    dayOfWeekLabel.textAlignment = NSTextAlignmentCenter;
    [self.view addSubview:dayOfWeekLabel];
    dayOfWeekLabel.text = @"Day of the Week";
    
    dayResponseLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 380, 320, 35)];
    dayResponseLabel.textAlignment= NSTextAlignmentCenter;
    dayResponseLabel.textColor = [UIColor lightGrayColor];
    dayResponseLabel.text= @"will display here";
     [self.view addSubview:dayResponseLabel];
    
}

-(IBAction)dateSelected:(id)sender
{
    datePicked = datePicker.date;
    NSCalendar *calendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *dateComponents = [calendar components:NSWeekdayCalendarUnit fromDate:datePicked];
    int weekdayUnit = [dateComponents weekday];
    NSArray *daysOfWeek = [[NSArray alloc] initWithObjects: @"Sunday", @"Monday", @"Tuesday", @"Wednesday", @"Thursday", @"Friday", @"Saturday", nil];
    weekday = [daysOfWeek objectAtIndex:weekdayUnit-1];
    dayResponseLabel.textColor = [UIColor blueColor];
    dayResponseLabel.text = weekday;
    
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end