NSSet to NSArray casting calling objectAtIndex?

Despite you're casting NSMutableSet to NSArray, that simple casting won't make NSSet class respond to NSArray's messages. You have to fill an actual NSArray with the elements of the NSSet like this.

Casting an NSSet object to NSArray will not do anything else that tricking the compiler into thinking that the object is an NSArray. Actually, the object is an NSSet object and trying to use it as an NSArray will produce failure.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.