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[carbcycle]

Hi,

I'm just starting to learn Objective-C.........very simple question for you...

How do I declare a string variable?

At the moment I am using:

NSString *colour;

But when I go to printf the contents of this variable, nothing is displayed.

I'm writing a small program to try and understand the syntax in objective-c, so please forgive my immaturity in the code below:-

#import <Cocoa/Cocoa.h>
#import <stdio.h>


@interface Cup : NSObject
{
	BOOL empty1;
	NSString *colour;
}

-(void)drinkCup:(BOOL)done;
-(void)paintCup:(id)paint;
-(void)print;

@end

@implementation Cup

-(void)drinkCup:(BOOL)done

{

	empty1 = done;
	
}

-(void)paintCup:(id)paint
{

	colour = paint;
	
}

-(void)print

{

	printf("The cup has been drunk:%i\n", empty1 );
	printf("The cup colour is:%@", colour );
	
	
}



@end


int main(int argc, char *argv[])
{
	Cup *lukesCup = [[Cup alloc] init];
	
	[lukesCup drinkCup: 1];
	[lukesCup paintCup: @"Red"];
	[lukesCup print];
	
	[lukesCup release];
	
    return NSApplicationMain(argc,  (const char **) argv);
	
}

Do I need to init the string as it is based on the class NSString?

Thanks for your help.