iOS Beginning iPhone Programming Question

[TechnoEagle]

I have just started trying to learn how to develop iPhone/iPad apps. I have been using the Stanford lecture videos on iTunes U, and have learned a lot so far. I did come across a problem while doing homework assignment 1B. I can't seem to figure out how to get it to work. Has anyone either watched these videos, or just knows a lot about Objective-C? If someone could post the code for the assignment so that I can figure out what I was doing wrong, that would be great! The homework assignment can be found at http://cs193p.stanford.edu As I said before, it is assignment 1B that I cannot figure out.
Thanks in advance!

 

[firewood]

Exactly what can't you figure out about this assignment?

 

[TechnoEagle]

Here is my code for the implementation file:

#import <Foundation/Foundation.h>
void PrintPathInfo()
{
	NSString *path=[@"~" stringByExpandingTildeInPath];
	NSLog(path);
}
void PrintProcessInfo()
{
	NSString *infoAboutProcess=@"Process Name: ";
	infoAboutProcess=[infoAboutProcess stringByAppendingFormat:[[NSProcessInfo processInfo] processName]];
	infoAboutProcess=[infoAboutProcess stringByAppendingFormat:@" Process ID: "];
	infoAboutProcess=[infoAboutProcess stringByAppendingFormat:[NSProcessInfo processInfo]];
	NSLog(infoAboutProcess);
}
void PrintBookmarkInfo()
{
	
}
void PrintIntrospectionInfo()
{
	
}
int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    PrintPathInfo();
	PrintProcessInfo();
	PrintBookmarkInfo();
	PrintIntrospectionInfo();
	
	[pool release];
    return 0;
}

For the PrintPathInfo() method, I cannot figure out how to separate each part of the path directory onto a separate line. For the PrintProcessInfo(), I keep getting weird errors and cannot figure out what to do. I haven't even started to work on the PrintBookmarkInfo() and PrintIntrospectionInfo() yet, because I want to get the first two methods working, first.

 

[Wabledoodle]

Without actually looking at the assignment:
You may want to try this for the PrintPathInfo http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/occ/instm/NSString/componentsSeparatedByCharactersInSet:

 

[FarSeide]

NSArray *pathComponents = [[NSArray alloc] init];
pathComponents = [path pathComponents];

for (NSString *pathComp in pathComponents)
{
NSLog(@"%@", pathComp);
}

[pathComponents release];