如何一起构造应该在Obj-C中相应执行的方法

Question

I am creating a language quiz app to learn Obj-C and I am having a hard time understanding the proper way to structure such the information processing functions. So far:

I have a collection of spanish words and their definitions in a separate text file. Here's the main parts of the code that I am having trouble implementing:

@implementation SGLDictionary

-(NSString*)makeStringFromFile:(NSString *)myFileName {
    //read file and save to *string

return string;

}

-(NSArray *)getContentFromString:(NSMutableString *)string {
     //Here the string is trimmed and deheadered so only the content is left and returned as an NSArray.
return Array;

}

-(NSMutableDictionary *)makeDictionaryFromArray:(NSArray *)array{
    //make the array mutable and form it into a dictionary by looping over it
return spanishToEnglishDictionary;

}

How do you later initialize an instance of the SGLDictionary class and call the methods so they are executed on the instance one by one? I'm not sure how this works because I thought the methods that change data don't return any (they return void ).

Answer 1

- (NSMutableDictionary *)dictionaryFromFile:(NSString *)file
{
    return [self makeDictionaryFromArray:[self getContentFromString:[self makeStringFromFile:file]]];
}

Isn't it enough for your question?

You can invoke this method like

SGLDictionary *sgl      = [[SGLDictionray alloc] init];
NSMutableDictionry *dic = [sgl dictionaryFromFile:file];

Answer 2

example : if u have a method like

-(BOOL)myInteger:(int)number1 andSecond:(int)number2;

then lemme explain what is happenening -

Method name - myInteger andSecond (Yes this is the full method name). -(BOOL) this is your RETURN TYPE .

(int)number1 -- This int is the type of FIRST parameter named - number1. (int)number2 -- This int is the type of SECOND parameter named - number2.

andSecond -- this is the continuation of the METHOD NAME.

and this is how u will call this method

 [self myInteger:4 andSecond:5];

I dont know if i understood ur question properly but i guess it helps