Hey team,
I decided to do a simple Xcode project from another book, just to keep it interesting and get familiar with Xcode. A couple things, the book doesn't specify which version of Xcode it's using, but the book was printed in 2009 and I downloaded Xcode in December of 2010. The only difference I've seen so far is in the Library Window. The book says the Library window has two tabs: Objects and Media. The book also shows pictures of the Xcode windows, and I see that the Library window picture shows it with only those two tabs. However my LIbrary window has 3 tabs. I have Objects/Classes/Media. So maybe they just moved things around in an Xcode update?
I'm following along with a simple calculator project in the book, everything is done and looks perfect, but when I "build and run" in Xcode, I'm getting an error in the code. I've included the code from my Xcode project. It's exactly as the book shows. I don't see any spelling errors either !
My copy and past didn't carry over the errors from my build, so I inserted them as comments. It said that two items were undeclared. Obviously the first thing I did was just add them to the int and declare them. But then it said that they were not used.
I added them to the int declaration, even though they didn't do that in the book, only because that was the error that was returned by the Xcode compiler. Take a look please. Thanks
I decided to do a simple Xcode project from another book, just to keep it interesting and get familiar with Xcode. A couple things, the book doesn't specify which version of Xcode it's using, but the book was printed in 2009 and I downloaded Xcode in December of 2010. The only difference I've seen so far is in the Library Window. The book says the Library window has two tabs: Objects and Media. The book also shows pictures of the Xcode windows, and I see that the Library window picture shows it with only those two tabs. However my LIbrary window has 3 tabs. I have Objects/Classes/Media. So maybe they just moved things around in an Xcode update?
I'm following along with a simple calculator project in the book, everything is done and looks perfect, but when I "build and run" in Xcode, I'm getting an error in the code. I've included the code from my Xcode project. It's exactly as the book shows. I don't see any spelling errors either !
My copy and past didn't carry over the errors from my build, so I inserted them as comments. It said that two items were undeclared. Obviously the first thing I did was just add them to the int and declare them. But then it said that they were not used.
I added them to the int declaration, even though they didn't do that in the book, only because that was the error that was returned by the Xcode compiler. Take a look please. Thanks
Code:
//
// Fusebox.m
// MyfirstApp
//
// Created by Scott Dean on 2/9/11.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import "Fusebox.h"
@implementation Fusebox
- (IBAction)calculateAnswer: (id)sender
{
int num1, num2, answer;
num1 = [numberField1 intValue]; //!numberField1 undeclared
num2 = [numberField2 intValue]; //!numberField2 undeclared
answer = num1 + num2;
[answerField setIntValue:answer];
}
@end