November 2013
Beginner
325 pages
9h 47m
English
Content preview from Objective-C Programming: The Big Nerd Ranch Guide
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Challenge: interesting names
This challenge is more challenging. Read through the following program, which finds common proper names that contain two adjacent A’s.
#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 *nameString = [NSString stringWithContentsOfFile:@"/usr/share/dict/propernames" encoding:NSUTF8StringEncoding error:NULL]; // Break it into an array of strings NSArray *names = [nameString componentsSeparatedByString:@"\n"]; // Go through the array one string at a time for (NSString *n in names) { // Look for the string "aa" in a case-insensitive manner NSRange r = [n rangeOfString:@"AA" options:NSCaseInsensitiveSearch]; ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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