Question

Sorry for the simple question, but i have an excercise where I have to write an Objective-C console app that squares a float and that displays resulting float in console, but i don’t understand how to write it, can someong please show me how to write that code so I could understand?

I’m beginer to Objective C so thanks for the patience! 🙂

Answer 1

I don’t see the purpose of a console application on the iPhone, but here you go:

Create a new project and edit your main.m from something like this:

int main(int argc, char *argv[])
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    int retVal = UIApplicationMain(argc, argv, nil, nil);
    [pool release];
    return retVal;
}

Change it to something like this:

int main(int argc, char *argv[])
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    float number = 3.14;
    float square = powf(number, 2.0);
    NSLog("%f^2=%f", number, square);
    int retVal = UIApplicationMain(argc, argv, nil, nil);
    [pool release];
    return retVal;
}