[Xeo]

In PHP when I have multiple variables, I can put them all together so when I print the same text several times throughout the code it's always the same. Something like:

Code:
$var1 = "Hi";
$var2 = "What's Up?";

$var3 = $var1.$var2;

echo $var3;

// produces "HiWhat's Up?"

I want to do something similar in Objective-C but I can't figure it out. Here is what I have:

Code:
        NSString * lastName = [anObject valueForProperty:kABLastNameProperty];
        NSString * firstName = [anObject valueForProperty:kABFirstNameProperty];

printf("$addrBook[\"%s%s%d\"]", [lastName UTF8String], [firstName UTF8String], arrIndex);

arrIndex is an integer, lastName and firstName are NSStrings. I want to all the text into a variable once, and just print out that when I need it. Right now, I'm reusing the printf() line multiple times so it's always parsing through. If I could just set the string and print it, it'd be better.

Second problem, how do I change that integer into a string. I was forced to use %d because I couldn't for the life of me find a function that would convert the integer to a string. I tried [arrIndex stringValue] but that didn't work. Any ideas?

Thanks in advance. I'll keep posting my problems as I come across them.

[smeger]

Code:
NSString *compositeString = [NSString stringWithFormat: @"$addrBook[\"%@%@%d\"]", lastName, firstName, arrIndex];

NSLog(compositeString); // to print it to the console

[Diggory Laycock]

Hi,

Your format is wrong: It is correct to put:

Code:
NSLog(@"this is a C string: %s", someCString);

however you are using NSStrings - which are fully fledged objects: therefore the format should be:

Code:
NSLog(@"this is an NSString: %@ ", someNSString);

(notice the @ symbol)

If you want to combine strings you cannot dot them - like in PHP - you have to use a method of NSString to combine them - have a look at the Instance Methods of NSString:

file:///System/Library/Frameworks/Fo.../NSString.html