Question

I am having a date format “16-11-2011”. but I want to convert it into “16 Nov”
I written the code for it but null value generates instead of the format “16 Nov”

for this I have written following code

NSDate *checkIn = [[NSUserDefaults standardUserDefaults]valueForKey:@"CHECK_1"];
    NSLog(@"Date: %@",checkIn);

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

    [formatter setDateFormat:@"dd MMM"];
    NSString *checkInDate = [formatter stringFromDate:checkIn];
    NSLog(@"checkInDate:%@",checkInDate);

and the results display by nslog statements are as follows:

Date: 16-11-2011
checkInDate:(null)

so I am not able to convert it into the format which I want

plz help me to solve the problem.

Answer 1

I suspect that checkIn is a NSString not NSDate.
Therefore, you would have to convert it to a NSDate first and then convert it back to the desired string format.

NSString *checkIn = [[NSUserDefaults standardUserDefaults]valueForKey:@"CHECK_1"];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd-MM-yyyy"];

NSDate *checkInTempDate = [dateFormatter dateFromString:checkIn];

[dateFormatter setDateFormat:@"dd MMM"];
NSString *checkInDate = [dateFormatter stringFromDate:checkInTempDate];