Dictionary Concepts

- (void)viewDidLoad

{

    [super viewDidLoad];

    dic=[[NSDictionary alloc]initWithObjectsAndKeys:@"userName",@"yuva",@"passWord",@"yuva", nil];

// Do any additional setup after loading the view, typically from a nib.

}

- (IBAction)click:(id)sender 

        

  //creating nsdictionary

    NSString *a=t1.text;

    NSString *a1=t2.text;

    NSString *a2=t3.text;

    NSDictionary *user1=[NSDictionary dictionaryWithObjectsAndKeys:a,@"username",a1,@"password",a2,@"key", nil];

//    NSMutableDictionary *u2=[NSMutableDictionary dictionary];

//    [u2 setObject:@"aaa" forKey:@"username"];

//    [u2 setObject:@"bbb" forKey:@"username"];

//    [u2 setObject:@"12" forKey:@"password"];

//    [u2 setObject:@"23" forKey:@"password"];

    //NSMutableArray *accounts = [NSMutableArray arrayWithObjects:user,user1,userAccount, nil];

        // do something with accounts

   Copy Dic to MutableDic

    //**********************

    NSMutableDictionary *dic;

    dic=[user1 mutableCopy];

    *************************

   

    NSString *str=[NSString stringWithFormat:@"%@",user1];

    tex1.text=[NSString stringWithFormat:@"NSDictionary string\n %@ \n\n\n NSmutabledictionary\n %@",str,dic];

   // NSMutableDictionary *dictionary=[[NSMutableDictionary alloc]initWithDictionary:user1];

}