Objective-C Tutorial - Lesson 13: Part 3: Extending Your Program

[ndproductions000]

you are the best

like if u think hees awesome

[tgrlaw1]

Your lessons are very helpful.

[masterniket]

Could you use arrays or some sort of structure to group all the budgets together? Or have I missed a lesson on arrays........

[Technoguy3]

Also, what's void? It seemed like you just magically started using it, and I don't remember which if any video you explained it in.

[Technoguy3]

Does not compute. I've gotten lost in a sea of budgets and foreign currency. xD I keep getting No member named "theBudget in "budget".

[theOnlyHe110]

Why are all the code in C, instead of Objective-C?

[macandcomputerhelp]

@theOnlyHe110 Because we first have to cover C before we can move into Objective-C.

[zamoray123]

Hi, thanks for your time to upload videos with explanations, I was reading the Dummies book, and to reach budget holidays I was frustrated about leaving him so ... now to finish watching the videos on this chapter I see light .... understand how logic works but I need to be completely sure .. I will continue looking through the detail

[alan080890]

I just don't get how the program knows what to use when you use something like eitherBudget when you never used it before.

[shieldsdundee]

top tip on the parenthesis for using the asterisk as an operator, getting less errors now since I realised this - thanks

[moldycode]

These tutorials are easily the easiest I've ever seen to follow. Bravo. I've had to go from c++ to objective c so I can program for the iPod touch.  These are truly wonderful

[neilhouselander]

cool, took a few watches but have got it now.

[synergy989]

I am a bit confused here, this video really helped that's for sure but I am still a little lost with pointers (the whole address thing).

How come before you put the & and * signs the program didn't work properly but after getting it's address it all of the sudden worked? I guess I am little confused about the whole address thing - I saw your video earlier and rewatched it but I am still a little lost.

If you could clarify that would be great but I have a feeing I will get it soon..

[macandcomputerhelp]

@synergy989 Are you still having problems?

[itsdannyftw]

@synergy989

synergy989, I agree. I had also posted in the comments a similar concern in the first video of these 3 parts, I don't really get the pointers and how it just made it work.

Because firstly, the introduction of the implementation of the pointers was when the chargeDollar function failed because it did not call the actual function (chargeDollar) but rather it just "copied" the variable's (theBudget) value and did not call the function to do the operations that it should do.

[itsdannyftw]

@synergy989

cont. 2:

Although, then again, how does the pointers and such help in this situation? I could probably write down whats going in my head here, but it's simply too much by over complicating it when it is simple and easy, even if I may get it correct ...

So, macandcomputerhelp, if you could probably make a tutorial or clarify here and etc, it'd be really appreciative. Because out of all these lessons, this is the only one that I have yet to understand 100% and properly.

Cheers,