tags	languages
beginner, instance-variables, oop, methods	objc

OO-Sentence

Let's represent a sentence in code.

Instructions

1. First create a new class called FISSentence
2. We are going to represent our sentence as an NSArray of NSStrings. So to represent the sentence "How are you?" we would have an array like this @[@"How", @"are", @"you?"]. To do this we will need to hold state in our object. This means an instance variable! Create a NSMutableArray instance variable to hold your words.
3. Write a method called stringFormat that returns an NSString that is the full sentence.
4. Write a method called numOfWords that returns the number of words in the sentence.
5. Write a method called containsWord: that takes an NSString to search for, and returns a YES or NO if that word is in the sentence.
6. Write an accessor method called words that returns the instance variable containing all the words.

Extra Credit

1. Write a method called isProperSentence that ensures that the first word is capitalized and the last word as a punctuation mark.
2. Write a method called isEqualToSentence that takes in another FISSentence object and returns a YES or NO if the sentences are the same. Be a bit loose with that definition. If the capitalization or punctuation is a bit different that is fine.