My Solution For Interesting Names Challenge

Objective-C Programming (2nd Edition) 17. NSArray
1

This is my solution for Challenge 2. It is not optimal, but it works! Any comments are appreciated.

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
@autoreleasepool {
//Read in a file as a huge string (ignoring the possibility of an error)
NSString *wordString = [NSString stringWithContentsOfFile:@"/usr/share/dict/words" encoding:NSUTF8StringEncoding error:NULL];

    //Break it into an array of strings
    NSArray *strings = [wordString componentsSeparatedByString:@"\n"];
    
    //Create an empty array for words
    NSMutableArray *words = [NSMutableArray array];
    
    //Create an empty array for names
    NSMutableArray *names = [NSMutableArray array];
    
    //Populate the array of words with words from the strings array
    for(NSString *s in strings){
        //ensure that the string is not empty
        if(![s  isEqual: @""]){
            //check if the first character is uppercase
            BOOL isUppercase = [[NSCharacterSet uppercaseLetterCharacterSet] characterIsMember:[s characterAtIndex:0]];
            //if it is a lowercase letter, add it to the words array
            if(!isUppercase){
                [words addObject:s];
            }
            //else, the first letter is uppercase, add it to the names array
            else{
               [names addObject:s];
            }
        }
    }
    
    
    //Iterate through the words array and compare each word to each name in the names array
    //NSLog matches
    for(NSString *s in words){
        for(NSString *n in names){
            if([s caseInsensitiveCompare:n] == NSOrderedSame){
                NSLog(@"Match found: %@.\n", n);
            }
        }
        
    }
    

}
return 0;

}