Question

In my application I take input from user and store it in NSMutableDictionary and Fetch result successfully.

But I am little confused about the output print on console. It’s not in an order.

What is reason behind this output?

Thanks

I use the following code to store input from textField and print it on Console.

-(IBAction)doneButtonClicked:(id)sender
{
 NSArray *arr=[NSArray arrayWithObjects:@"firstName",@"middleName",@"lastName",@"address",@"email",@"phone",nil];

 DataClass *obj=[DataClass getInstance];  

 obj.personelInfo=[NSMutableDictionary dictionary];

 for (int a=1; a<=personelInfoCounter; a++) {


    UITextField *textField = (UITextField*)[self.view viewWithTag:a];




    NSString *fieldValue = textField.text;


    if(fieldValue != nil)
    {
    [obj.personelInfo setObject:fieldValue forKey:[arr objectAtIndex:a-1]];
    }
    else
    {
       [obj.personelInfo setObject:@"" forKey:[arr objectAtIndex:a-1]]; 
    }

}



NSLog(@"Final value of Personal Info Dictionary is ----------------------------------:");

for (id key in obj.personelInfo) {

    NSLog(@"%@      ,      %@", key, [obj.personelInfo objectForKey:key]);

}
}

And the output on console is

Answer 1

it is not in order. What is reason behind this output?

NSDictionary and NSMutableDictionary don’t maintain the order of the things you put in them. It’s undefined what order you’ll get when you enumerate a dictionary.