Question

I have two arrays, the first one contents numbers and the second one use this numbers as indexes.

NSArray *dayOfWeek = [NSArray arrayWithObjects:@"D",@"L",@"M", @"X",@"J",@"V",@"S", nil];

NSArray *arrayDays = [days componentsSeparatedByString:@" "];     

 //arrayDays  2 3 4 5 6 

     NSString *daysPrint;

     for (NSString *theDay in arrayDays) {
         NSLog(@"string %@",theDay);
         NSInteger dayIndex = (NSInteger)theDay;
         NSLog(@"integer %d", dayIndex);
         daysPrint = [NSString stringWithFormat:@"%@ %@", daysPrint, [dayOfWeek objectAtIndex:dayIndex]];

     }

in the log:

2012-07-02 12:49:27.322 usualBike[1698:f803] string 2
2012-07-02 12:49:27.323 usualBike[1698:f803] integer 109471840

And obviously when I try to get dayOfWeek[109461840] it crashes.

How can I solve this?

Thank you in advance

Answer 1

Use this

 for (NSString *theDay in arrayDays) {
    NSLog(@"string %@",theDay);
    NSInteger dayIndex = [theDay intValue];     // change this code
    NSLog(@"integer %d", dayIndex);
    daysPrint = [NSString stringWithFormat:@"%@ %@", daysPrint, [dayOfWeek objectAtIndex:dayIndex]];

}