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POissue in Changing date formate
 

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    <p>i have one array of string something like below </p> <pre><code>newlymadeArray( "03/05/2013", "09/22/2013", "03/02/2013", "03/02/2013", "08/22/2013", "11/02/2013", "07/08/2013", "08/31/2013", "05/13/2013", "07/11/2013", "10/07/2013", "02/20/2013" </code></pre> <p>)</p> <p>current formate is MM/dd/yyyy</p> <p>i want to change it to dd/MM/yyyy</p> <p>i am using following code for this </p> <pre><code> NSLog(@"_newlymadeArray%@",_newlymadeArray); //logic for changing date formate for( int i=0; i&lt;_newlymadeArray.count; i++){ NSDateFormatter *dateFormatter1 = [[NSDateFormatter alloc] init]; [dateFormatter1 setDateFormat:@"MM/dd/yyyy"]; NSDateFormatter *dateFormatter2 = [[NSDateFormatter alloc] init]; [dateFormatter2 setDateFormat:@"dd/MM/yyyy"]; NSDate *old = [dateFormatter1 dateFromString:[_newlymadeArray objectAtIndex:i]]; NSLog(@"old %@",old); NSString *old1 =[dateFormatter1 stringFromDate:old]; NSDate *new = [dateFormatter2 dateFromString:old1]; NSLog(@"new %@",new); NSString *string = [dateFormatter2 stringFromDate:new]; NSLog(@"string %@",string); [_convertedBdates addObject:string]; } NSLog(@"_convertedBdates%@",_convertedBdates); </code></pre> <p>this is what im getting as output </p> <pre><code> old 2013-03-04 18:30:00 +0000 new 2013-05-02 18:30:00 +0000 string 03/05/2013 old 2013-09-21 18:30:00 +0000 new (null) string (null) ] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil' *** First throw call stack: </code></pre> <p>my questions are why old get printed 2013-03-04 instead of 05/03/2013 at the end of first time loop it gets printed 03/05/2013 instead of 05/03/2013 and when loop is running second time it gets null value in new so thats why adding null value in array program get crashed </p> <p>plz tell me what im doing wrong ?</p>
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